Thymidine

1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione

C10H14N2O5 (242.0903)


Deoxythymidine, also known as 2-deoxy-5-methyluridine or 5-methyl-2-deoxyuridine, is a member of the class of compounds known as pyrimidine 2-deoxyribonucleosides. Pyrimidine 2-deoxyribonucleosides are compounds consisting of a pyrimidine linked to a ribose which lacks a hydroxyl group at position 2. Deoxythymidine is soluble (in water) and a very weakly acidic compound (based on its pKa). Deoxythymidine can be synthesized from thymine. Deoxythymidine is also a parent compound for other transformation products, including but not limited to, tritiated thymidine, alpha-tritiated thymidine, and 5,6-dihydrothymidine. Deoxythymidine can be found in a number of food items such as butternut squash, mammee apple, catjang pea, and climbing bean, which makes deoxythymidine a potential biomarker for the consumption of these food products. Deoxythymidine can be found primarily in most biofluids, including blood, amniotic fluid, cerebrospinal fluid (CSF), and urine, as well as throughout most human tissues. Deoxythymidine exists in all living species, ranging from bacteria to humans. In humans, deoxythymidine is involved in the pyrimidine metabolism. Deoxythymidine is also involved in few metabolic disorders, which include beta ureidopropionase deficiency, dihydropyrimidinase deficiency, MNGIE (mitochondrial neurogastrointestinal encephalopathy), and UMP synthase deficiency (orotic aciduria). Moreover, deoxythymidine is found to be associated with canavan disease and degenerative disc disease. Thymidine (deoxythymidine; other names deoxyribosylthymine, thymine deoxyriboside) is a pyrimidine deoxynucleoside. Deoxythymidine is the DNA nucleoside T, which pairs with deoxyadenosine (A) in double-stranded DNA. In cell biology it is used to synchronize the cells in G1/early S phase . Thymidine, also known as deoxythymidine or deoxyribosylthymine or thymine deoxyriboside, is a pyrimidine deoxynucleoside. It consists of the nucleobase thymine attached to deoxyribose through a beta N- glycosidic bond. Thymidine also belongs to the class of organic compounds known as pyrimidine 2-deoxyribonucleosides. Pyrimidine 2-deoxyribonucleosides are compounds consisting of a pyrimidine linked to a ribose which lacks a hydroxyl group at position 2. Deoxythymidine (or thymidine) is the DNA nucleoside T, which pairs with deoxyadenosine (A) in double-stranded DNA. Therefore, thymidine is essential to all life. Indeed, thymidine exists in all living species, ranging from bacteria to plants to humans. Within humans, thymidine participates in a number of enzymatic reactions. In particular, thymidine can be biosynthesized from 5-thymidylic acid through its interaction with the enzyme cytosolic purine 5-nucleotidase. In addition, thymidine can be converted into 5-thymidylic acid; which is catalyzed by the enzyme thymidine kinase. Deoxythymidine can be phosphorylated with one, two or three phosphoric acid groups, creating dTMP (deoxythymidine monophosphate), dTDP, or dTTP (for the di- and tri- phosphates, respectively). dTMP can be incorporated into DNA via DNA polymerases. In cell biology, thymidine can be used to synchronize the cells in S phase. Derivatives of thymidine are used in a number of drugs, including Azidothymidine (AZT), which is used in the treatment of HIV infection. AZT inhibits the process of reverse transcription in the human immunodeficiency virus. Thymidine is a pyrimidine 2-deoxyribonucleoside having thymine as the nucleobase. It has a role as a metabolite, a human metabolite, an Escherichia coli metabolite and a mouse metabolite. It is functionally related to a thymine. It is an enantiomer of a telbivudine. Thymidine is a pyrimidine deoxynucleoside. Thymidine is the DNA nucleoside T, which pairs with deoxyadenosine (A) in double-stranded DNA. In cell biology it is used to synchronize the cells in S phase. Thymidine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Thymidine is a natural product found in Fritillaria thunbergii, Saussurea medusa, and other organisms with data available. Thymidine is a pyrimidine nucleoside that is composed of the pyrimidine base thymine attached to the sugar deoxyribose. As a constituent of DNA, thymidine pairs with adenine in the DNA double helix. (NCI04) Thymidine is a metabolite found in or produced by Saccharomyces cerevisiae. A nucleoside in which THYMINE is linked to DEOXYRIBOSE. A pyrimidine 2-deoxyribonucleoside having thymine as the nucleobase. KEIO_ID T014; [MS2] KO009272 KEIO_ID T014 Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication[1][2][3]. Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication[1][2][3].

   

Arbutin

(2R,3S,4S,5R,6S)-2-(hydroxymethyl)-6-(4-hydroxyphenoxy)tetrahydro-2H-pyran-3,4,5-triol

C12H16O7 (272.0896)


Hydroquinone O-beta-D-glucopyranoside is a monosaccharide derivative that is hydroquinone attached to a beta-D-glucopyranosyl residue at position 4 via a glycosidic linkage. It has a role as a plant metabolite and an Escherichia coli metabolite. It is a beta-D-glucoside and a monosaccharide derivative. It is functionally related to a hydroquinone. Extracted from the dried leaves of bearberry plant in the genus Arctostaphylos and other plants commonly in the Ericaceae family, arbutin is a beta-D-glucopyranoside of [DB09526]. It is found in foods, over-the-counter drugs, and herbal dietary supplements. Most commonly, it is an active ingredient in skincare and cosmetic products as a skin-lightening agent for the prevention of melanin formation in various skin conditions that involve cutaneous hyperpigmentation or hyperactive melanocyte function. It has also been used as an anti-infective for the urinary system as well as a diuretic. Arbutin is available in both natural and synthetic forms; it can be synthesized from acetobromglucose and [DB09526]. Arbutin is a competitive inhibitor of tyrosinase (E.C.1.14.18.1) in melanocytes, and the inhibition of melanin synthesis at non-toxic concentrations was observed in vitro. Arbutin was shown to be less cytotoxic to melanocytes in culture compared to [DB09526]. Arbutin is a natural product found in Grevillea robusta, Halocarpus biformis, and other organisms with data available. See also: Arctostaphylos uva-ursi leaf (part of); Arbutin; octinoxate (component of); Adenosine; arbutin (component of) ... View More ... Arbutin, also known as hydroquinone-O-beta-D-glucopyranoside or P-hydroxyphenyl beta-D-glucopyranoside, is a member of the class of compounds known as phenolic glycosides. Phenolic glycosides are organic compounds containing a phenolic structure attached to a glycosyl moiety. Some examples of phenolic structures include lignans, and flavonoids. Among the sugar units found in natural glycosides are D-glucose, L-Fructose, and L rhamnose. Arbutin is soluble (in water) and a very weakly acidic compound (based on its pKa). Arbutin can be found in a number of food items such as guava, lingonberry, irish moss, and rowal, which makes arbutin a potential biomarker for the consumption of these food products. Arbutin is a glycoside; a glycosylated hydroquinone extracted from the bearberry plant in the genus Arctostaphylos among many other medicinal plants, primarily in the Ericaceae family. Applied topically, it inhibits tyrosinase and thus prevents the formation of melanin. Arbutin is therefore used as a skin-lightening agent. Very tiny amounts of arbutin are found in wheat, pear skins, and some other foods. It is also found in Bergenia crassifolia. Arbutin was also produced by an in vitro culture of Schisandra chinensis . A monosaccharide derivative that is hydroquinone attached to a beta-D-glucopyranosyl residue at position 4 via a glycosidic linkage. Arbutin is found in apple. Glucoside in pear leaves (Pyrus communis C471 - Enzyme Inhibitor CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6126; ORIGINAL_PRECURSOR_SCAN_NO 6123 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6107; ORIGINAL_PRECURSOR_SCAN_NO 6104 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 811; ORIGINAL_PRECURSOR_SCAN_NO 808 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 806; ORIGINAL_PRECURSOR_SCAN_NO 804 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 813; ORIGINAL_PRECURSOR_SCAN_NO 811 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 832; ORIGINAL_PRECURSOR_SCAN_NO 828 CONFIDENCE standard compound; INTERNAL_ID 1335; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 817; ORIGINAL_PRECURSOR_SCAN_NO 816 Arbutin (β-Arbutin) is a competitive inhibitor of tyrosinase, with Kiapp values of 1.42 mM for monophenolase; 0.9 mM for diphenolase. Arbutin is also used as depigmenting agents[1]. Arbutin is a natural polyphenol isolated from the bearberry plant Arctostaphylos uvaursi, possesses with anti-oxidant, anti-inflammatory and anti-tumor properties[2][3]. Arbutin (β-Arbutin) is a competitive inhibitor of tyrosinase, with Kiapp values of 1.42 mM for monophenolase; 0.9 mM for diphenolase. Arbutin is also used as depigmenting agents[1]. Arbutin is a natural polyphenol isolated from the bearberry plant Arctostaphylos uvaursi, possesses with anti-oxidant, anti-inflammatory and anti-tumor properties[2][3].

   

Chlorogenic acid

Chlorogenic acid (constituent of echinacea angustifolia root, echinacea pallida root, echinacea purpurea root and echinacea purpurea aerial parts)

C16H18O9 (354.0951)


Chlorogenic acid is a cinnamate ester obtained by formal condensation of the carboxy group of trans-caffeic acid with the 3-hydroxy group of quinic acid. It is an intermediate metabolite in the biosynthesis of lignin. It has a role as a plant metabolite and a food component. It is a cinnamate ester and a tannin. It is functionally related to a (-)-quinic acid and a trans-caffeic acid. It is a conjugate acid of a chlorogenate. Chlorogenic Acid has been used in trials studying the treatment of Advanced Cancer and Impaired Glucose Tolerance. Chlorogenic Acid is a natural product found in Pavetta indica, Fragaria nipponica, and other organisms with data available. Chlorogenic Acid is a polyphenol and the ester of caffeic acid and quinic acid that is found in coffee and black tea, with potential antioxidant and chemopreventive activities. Chlorogenic acid scavenges free radicals, which inhibits DNA damage and may protect against the induction of carcinogenesis. In addition, this agent may upregulate the expression of genes involved in the activation of the immune system and enhances activation and proliferation of cytotoxic T-lymphocytes, macrophages, and natural killer cells. Chlorogenic acid also inhibits the activity of matrix metalloproteinases. A naturally occurring phenolic acid which is a carcinogenic inhibitor. It has also been shown to prevent paraquat-induced oxidative stress in rats. (From J Chromatogr A 1996;741(2):223-31; Biosci Biotechnol Biochem 1996;60(5):765-68). See also: Arctium lappa Root (part of); Cynara scolymus leaf (part of); Lonicera japonica flower (part of) ... View More ... Chlorogenic acid is an ester of caffeic acid and quinic acid. Chlorogenic acid is the major polyphenolic compound in coffee, isolated from the leaves and fruits of dicotyledonous plants. This compound, long known as an antioxidant, also slows the release of glucose into the bloodstream after a meal. Coffee is a complex mixture of chemicals that provides significant amounts of chlorogenic acid. The chlorogenic acid content of a 200 ml (7-oz) cup of coffee has been reported to range from 70-350 mg, which would provide about 35-175 mg of caffeic acid. The results of epidemiological research suggest that coffee consumption may help prevent several chronic diseases, including type 2 diabetes mellitus, Parkinsons disease and liver disease (cirrhosis and hepatocellular carcinoma). Most prospective cohort studies have not found coffee consumption to be associated with significantly increased cardiovascular disease risk. However, coffee consumption is associated with increases in several cardiovascular disease risk factors, including blood pressure and plasma homocysteine. At present, there is little evidence that coffee consumption increases the risk of cancer. (PMID:16507475, 17368041). A cinnamate ester obtained by formal condensation of the carboxy group of trans-caffeic acid with the 3-hydroxy group of quinic acid. It is an intermediate metabolite in the biosynthesis of lignin. [Raw Data] CBA08_Chlorogenic-aci_pos_10eV_1-1_01_209.txt [Raw Data] CBA08_Chlorogenic-aci_neg_30eV_1-1_01_218.txt [Raw Data] CBA08_Chlorogenic-aci_neg_20eV_1-1_01_217.txt [Raw Data] CBA08_Chlorogenic-aci_pos_30eV_1-1_01_211.txt [Raw Data] CBA08_Chlorogenic-aci_neg_40eV_1-1_01_219.txt [Raw Data] CBA08_Chlorogenic-aci_pos_20eV_1-1_01_210.txt [Raw Data] CBA08_Chlorogenic-aci_pos_50eV_1-1_01_213.txt [Raw Data] CBA08_Chlorogenic-aci_neg_50eV_1-1_01_220.txt [Raw Data] CBA08_Chlorogenic-aci_neg_10eV_1-1_01_216.txt [Raw Data] CBA08_Chlorogenic-aci_pos_40eV_1-1_01_212.txt Chlorogenic acid is a major phenolic compound in Lonicera japonica Thunb.. It plays several important and therapeutic roles such as antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension. Chlorogenic acid is a major phenolic compound in Lonicera japonica Thunb. It is an orally active antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension compound[1][2][3]. Chlorogenic acid is a major phenolic compound in Lonicera japonica Thunb.. It plays several important and therapeutic roles such as antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension.

   

Quercetin

2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one

C15H10O7 (302.0427)


Quercetin appears as yellow needles or yellow powder. Converts to anhydrous form at 203-207 °F. Alcoholic solutions taste very bitter. (NTP, 1992) Quercetin is a pentahydroxyflavone having the five hydroxy groups placed at the 3-, 3-, 4-, 5- and 7-positions. It is one of the most abundant flavonoids in edible vegetables, fruit and wine. It has a role as an antibacterial agent, an antioxidant, a protein kinase inhibitor, an antineoplastic agent, an EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor, a plant metabolite, a phytoestrogen, a radical scavenger, a chelator, an Aurora kinase inhibitor and a geroprotector. It is a pentahydroxyflavone and a 7-hydroxyflavonol. It is a conjugate acid of a quercetin-7-olate. Quercetin is a flavonol widely distributed in plants. It is an antioxidant, like many other phenolic heterocyclic compounds. Glycosylated forms include RUTIN and quercetrin. Quercetin is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Quercetin is a flavonoid found in many foods and herbs and is a regular component of a normal diet. Extracts of quercetin have been used to treat or prevent diverse conditions including cardiovascular disease, hypercholesterolemia, rheumatic diseases, infections and cancer but have not been shown to be effective in clinical trials for any medical condition. Quercetin as a nutritional supplement is well tolerated and has not been linked to serum enzyme elevations or to episodes of clinically apparent liver injury. Quercetin is a natural product found in Lotus ucrainicus, Visnea mocanera, and other organisms with data available. Quercetin is a polyphenolic flavonoid with potential chemopreventive activity. Quercetin, ubiquitous in plant food sources and a major bioflavonoid in the human diet, may produce antiproliferative effects resulting from the modulation of either EGFR or estrogen-receptor mediated signal transduction pathways. Although the mechanism of action of action is not fully known, the following effects have been described with this agent in vitro: decreased expression of mutant p53 protein and p21-ras oncogene, induction of cell cycle arrest at the G1 phase and inhibition of heat shock protein synthesis. This compound also demonstrates synergy and reversal of the multidrug resistance phenotype, when combined with chemotherapeutic drugs, in vitro. Quercetin also produces anti-inflammatory and anti-allergy effects mediated through the inhibition of the lipoxygenase and cyclooxygenase pathways, thereby preventing the production of pro-inflammatory mediators. Quercetin is a flavonoid widely distributed in many plants and fruits including red grapes, citrus fruit, tomato, broccoli and other leafy green vegetables, and a number of berries, including raspberries and cranberries. Quercetin itself (aglycone quercetin), as opposed to quercetin glycosides, is not a normal dietary component. Quercitin glycosides are converted to phenolic acids as they pass through the gastrointestinal tract. Quercetin has neither been confirmed scientifically as a specific therapeutic for any condition nor been approved by any regulatory agency. The U.S. Food and Drug Administration has not approved any health claims for quercetin. Nevertheless, the interest in dietary flavonoids has grown after the publication of several epidemiological studies showing an inverse correlation between dietary consumption of flavonols and flavones and reduced incidence and mortality from cardiovascular disease and cancer. In recent years, a large amount of experimental and some clinical data have accumulated regarding the effects of flavonoids on the endothelium under physiological and pathological conditions. The meta-analysis of seven prospective cohort studies concluded that the individuals in the top third of dietary flavonol intake are associated with a reduced risk of mortality from coronary heart disease as compared with those in the bottom third, after adju... Quercetin is a flavonoid widely distributed in many plants and fruits including red grapes, citrus fruit, tomato, broccoli and other leafy green vegetables, and a number of berries, including raspberries and cranberries. Quercetin itself (aglycone quercetin), as opposed to quercetin glycosides, is not a normal dietary component. Quercetin glycosides are converted to phenolic acids as they pass through the gastrointestinal tract. Quercetin has neither been confirmed scientifically as a specific therapeutic for any condition nor been approved by any regulatory agency. The U.S. Food and Drug Administration has not approved any health claims for quercetin. Nevertheless, the interest in dietary flavonoids has grown after the publication of several epidemiological studies showing an inverse correlation between dietary consumption of flavonols and flavones and reduced incidence and mortality from cardiovascular disease and cancer. In recent years, a large amount of experimental and some clinical data have accumulated regarding the effects of flavonoids on the endothelium under physiological and pathological conditions. The meta-analysis of seven prospective cohort studies concluded that the individuals in the top third of dietary flavonol intake are associated with a reduced risk of mortality from coronary heart disease as compared with those in the bottom third, after adjustment for known risk factors and other dietary components. A limited number of intervention studies with flavonoids and flavonoid containing foods and extracts has been performed in several pathological conditions (PMID:17015250). Quercetin is isolated from many plants, especially fruits, such as Helichrysum, Euphorbia and Karwinskia spp. Present in the Solanaceae, Rhamnaceae, Passifloraceae and many other families. For example detected in almost all studied Umbelliferae. Nutriceutical with antiinflammatory props. and a positive influence on the blood lipid profile. Found in a wide variety of foods especially apples, bee pollen, blackcurrants, capers, cocoa, cranberries, dock leaves, elderberries, fennel, lovage, red onions, ancho peppers, dill weed and tarragon. A pentahydroxyflavone having the five hydroxy groups placed at the 3-, 3-, 4-, 5- and 7-positions. It is one of the most abundant flavonoids in edible vegetables, fruit and wine. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4014; ORIGINAL_PRECURSOR_SCAN_NO 4012 INTERNAL_ID 298; CONFIDENCE standard compound; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4011; ORIGINAL_PRECURSOR_SCAN_NO 4010 CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4019; ORIGINAL_PRECURSOR_SCAN_NO 4018 CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4017; ORIGINAL_PRECURSOR_SCAN_NO 4016 CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4011; ORIGINAL_PRECURSOR_SCAN_NO 4010 CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4096; ORIGINAL_PRECURSOR_SCAN_NO 4094 CONFIDENCE standard compound; INTERNAL_ID 298; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4024; ORIGINAL_PRECURSOR_SCAN_NO 4023 Acquisition and generation of the data is financially supported in part by CREST/JST. [Raw Data] CB109_Quercetin_pos_30eV_CB000041.txt IPB_RECORD: 1761; CONFIDENCE confident structure [Raw Data] CB109_Quercetin_pos_10eV_CB000041.txt [Raw Data] CB109_Quercetin_pos_20eV_CB000041.txt [Raw Data] CB109_Quercetin_pos_40eV_CB000041.txt [Raw Data] CB109_Quercetin_pos_50eV_CB000041.txt IPB_RECORD: 161; CONFIDENCE confident structure [Raw Data] CB109_Quercetin_neg_40eV_000027.txt [Raw Data] CB109_Quercetin_neg_50eV_000027.txt [Raw Data] CB109_Quercetin_neg_20eV_000027.txt [Raw Data] CB109_Quercetin_neg_30eV_000027.txt [Raw Data] CB109_Quercetin_neg_10eV_000027.txt CONFIDENCE standard compound; INTERNAL_ID 124 CONFIDENCE standard compound; ML_ID 54 Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1]. Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1].

   

Stigmasterol

(3S,8S,9S,10R,13R,14S,17R)-17-((2R,5S,E)-5-ethyl-6-methylhept-3-en-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H48O (412.3705)


Stigmasterol is a phytosterol, meaning it is steroid derived from plants. As a food additive, phytosterols have cholesterol-lowering properties (reducing cholesterol absorption in intestines), and may act in cancer prevention. Phytosterols naturally occur in small amount in vegetable oils, especially soybean oil. One such phytosterol complex, isolated from vegetable oil, is cholestatin, composed of campesterol, stigmasterol, and brassicasterol, and is marketed as a dietary supplement. Sterols can reduce cholesterol in human subjects by up to 15\\%. The mechanism behind phytosterols and the lowering of cholesterol occurs as follows : the incorporation of cholesterol into micelles in the gastrointestinal tract is inhibited, decreasing the overall amount of cholesterol absorbed. This may in turn help to control body total cholesterol levels, as well as modify HDL, LDL and TAG levels. Many margarines, butters, breakfast cereals and spreads are now enriched with phytosterols and marketed towards people with high cholesterol and a wish to lower it. Stigmasterol is found to be associated with phytosterolemia, which is an inborn error of metabolism. Stigmasterol is a 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. It has a role as a plant metabolite. It is a 3beta-sterol, a stigmastane sterol, a 3beta-hydroxy-Delta(5)-steroid and a member of phytosterols. It derives from a hydride of a stigmastane. Stigmasterol is a natural product found in Ficus auriculata, Xylopia aromatica, and other organisms with data available. Stigmasterol is a steroid derivative characterized by the hydroxyl group in position C-3 of the steroid skeleton, and unsaturated bonds in position 5-6 of the B ring, and position 22-23 in the alkyl substituent. Stigmasterol is found in the fats and oils of soybean, calabar bean and rape seed, as well as several other vegetables, legumes, nuts, seeds, and unpasteurized milk. See also: Comfrey Root (part of); Saw Palmetto (part of); Plantago ovata seed (part of). Stigmasterol is an unsaturated plant sterol occurring in the plant fats or oils of soybean, calabar bean, and rape seed, and in a number of medicinal herbs, including the Chinese herbs Ophiopogon japonicus (Mai men dong) and American Ginseng. Stigmasterol is also found in various vegetables, legumes, nuts, seeds, and unpasteurized milk. A 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol

   

Zeaxanthin

(1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4R)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-3,5,5-trimethylcyclohex-3-en-1-ol

C40H56O2 (568.428)


Zeaxanthin is a carotenoid xanthophyll and is one of the most common carotenoid found in nature. It is the pigment that gives corn, saffron, and many other plants their characteristic color. Zeaxanthin breaks down to form picrocrocin and safranal, which are responsible for the taste and aroma of saffron Carotenoids are among the most common pigments in nature and are natural lipid soluble antioxidants. Zeaxanthin is one of the two carotenoids (the other is lutein) that accumulate in the eye lens and macular region of the retina with concentrations in the macula greater than those found in plasma and other tissues. Lutein and zeaxanthin have identical chemical formulas and are isomers, but they are not stereoisomers. The main difference between them is in the location of a double bond in one of the end rings. This difference gives lutein three chiral centers whereas zeaxanthin has two. A relationship between macular pigment optical density, a marker of lutein and zeaxanthin concentration in the macula, and lens optical density, an antecedent of cataractous changes, has been suggested. The xanthophylls may act to protect the eye from ultraviolet phototoxicity via quenching reactive oxygen species and/or other mechanisms. Some observational studies have shown that generous intakes of lutein and zeaxanthin, particularly from certain xanthophyll-rich foods like spinach, broccoli and eggs, are associated with a significant reduction in the risk for cataract (up to 20\\%) and for age-related macular degeneration (up to 40\\%). While the pathophysiology of cataract and age-related macular degeneration is complex and contains both environmental and genetic components, research studies suggest dietary factors including antioxidant vitamins and xanthophylls may contribute to a reduction in the risk of these degenerative eye diseases. Further research is necessary to confirm these observations. (PMID: 11023002). Zeaxanthin has been found to be a microbial metabolite, it can be produced by Algibacter, Aquibacter, Escherichia, Flavobacterium, Formosa, Gramella, Hyunsoonleella, Kordia, Mesoflavibacter, Muricauda, Nubsella, Paracoccus, Siansivirga, Sphingomonas, Zeaxanthinibacter and yeast (https://reader.elsevier.com/reader/sd/pii/S0924224417302571?token=DE6BC6CC7DCDEA6150497AA3E375097A00F8E0C12AE03A8E420D85D1AC8855E62103143B5AE0B57E9C5828671F226801). It is a marker for the activity of Bacillus subtilis and/or Pseudomonas aeruginosa in the intestine. Higher levels are associated with higher levels of Bacillus or Pseudomonas. (PMID: 17555270; PMID: 12147474) Zeaxanthin is a carotenol. It has a role as a bacterial metabolite, a cofactor and an antioxidant. It derives from a hydride of a beta-carotene. Zeaxanthin is a most common carotenoid alcohols found in nature that is involved in the xanthophyll cycle. As a coexistent isomer of lutein, zeaxanthin is synthesized in plants and some micro-organisms. It gives the distinct yellow color to many vegetables and other plants including paprika, corn, saffron and wolfberries. Zeaxanthin is one of the two primary xanthophyll carotenoids contained within the retina of the eye and plays a predominant component in the central macula. It is available as a dietary supplement for eye health benefits and potential prevention of age-related macular degeneration. Zeaxanthin is also added as a food dye. Zeaxanthin is a natural product found in Bangia fuscopurpurea, Erythrobacter longus, and other organisms with data available. Carotenoids found in fruits and vegetables. Zeaxanthin accumulates in the MACULA LUTEA. See also: Saffron (part of); Corn (part of); Lycium barbarum fruit (part of). D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids

   

Deoxyuridine

1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione

C9H12N2O5 (228.0746)


Deoxyuridine, also known as dU, belongs to the class of organic compounds known as pyrimidine 2-deoxyribonucleosides. Pyrimidine 2-deoxyribonucleosides are compounds consisting of a pyrimidine linked to a ribose which lacks a hydroxyl group at position 2. It is similar in chemical structure to uridine, but without the 2-hydroxyl group. Deoxyuridine exists in all living organisms, ranging from bacteria to humans. Within humans, deoxyuridine participates in a number of enzymatic reactions. In particular, deoxyuridine can be biosynthesized from deoxycytidine through its interaction with the enzyme cytidine deaminase. In addition, deoxyuridine can be converted into uracil and deoxyribose 1-phosphate through its interaction with the enzyme thymidine phosphorylase. Deoxyuridine is considered to be an antimetabolite that is converted into deoxyuridine triphosphate during DNA synthesis. Laboratory suppression of deoxyuridine is used to diagnose megaloblastic anemia due to vitamin B12 and folate deficiencies. In humans, deoxyuridine is involved in the metabolic disorder called UMP synthase deficiency (orotic aciduria). Outside of the human body, deoxyuridine has been detected, but not quantified in, several different foods, such as lichee, highbush blueberries, agaves, macadamia nut (M. tetraphylla), and red bell peppers. This could make deoxyuridine a potential biomarker for the consumption of these foods. 2-Deoxyuridine is a naturally occurring nucleoside. It is similar in chemical structure to uridine, but without the 2-hydroxyl group. It is considered to be an antimetabolite that is converted to deoxyuridine triphosphate during DNA synthesis. Laboratory suppression of deoxyuridine is used to diagnose megaloblastic anemia due to vitamin B12 and folate deficiencies. [HMDB]. Deoxyuridine is found in many foods, some of which are garden tomato (variety), hickory nut, banana, and hazelnut. Deoxyuridine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=951-78-0 (retrieved 2024-07-01) (CAS RN: 951-78-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine.

   

N-(3-Methylbut-2-EN-1-YL)-9H-purin-6-amine

(3-Methyl-but-2-enyl)-(7(9)H-purin-6-yl)-amine

C10H13N5 (203.1171)


N6-prenyladenine, also known as isopentenyladenine or ip, is a member of the class of compounds known as 6-alkylaminopurines. 6-alkylaminopurines are compounds that contain an alkylamine group attached at the 6-position of a purine. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring. N6-prenyladenine is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). N6-prenyladenine can be found in a number of food items such as lime, lemon thyme, nectarine, and napa cabbage, which makes n6-prenyladenine a potential biomarker for the consumption of these food products. D006133 - Growth Substances > D010937 - Plant Growth Regulators > D003583 - Cytokinins Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 74 6-(γ,γ-Dimethylallylamino)purine is a plant growth substance. 6-(γ,γ-Dimethylallylamino)purine is a plant growth substance.

   

Cholesterol

(1S,2R,5S,10S,11S,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol

C27H46O (386.3548)


Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues and transported in the blood plasma of all animals. The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol. This is because researchers first identified cholesterol in solid form in gallstones in 1784. In the body, cholesterol can exist in either the free form or as an ester with a single fatty acid (of 10-20 carbons in length) covalently attached to the hydroxyl group at position 3 of the cholesterol ring. Due to the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of polyunsaturated fatty acids. Most of the cholesterol consumed as a dietary lipid exists as cholesterol esters. Cholesterol esters have a lower solubility in water than cholesterol and are more hydrophobic. They are hydrolyzed by the pancreatic enzyme cholesterol esterase to produce cholesterol and free fatty acids. Cholesterol has vital structural roles in membranes and in lipid metabolism in general. It is a biosynthetic precursor of bile acids, vitamin D, and steroid hormones (glucocorticoids, estrogens, progesterones, androgens and aldosterone). In addition, it contributes to the development and functioning of the central nervous system, and it has major functions in signal transduction and sperm development. Cholesterol is a ubiquitous component of all animal tissues where much of it is located in the membranes, although it is not evenly distributed. The highest proportion of unesterified cholesterol is in the plasma membrane (roughly 30-50\\\\% of the lipid in the membrane or 60-80\\\\% of the cholesterol in the cell), while mitochondria and the endoplasmic reticulum have very low cholesterol contents. Cholesterol is also enriched in early and recycling endosomes, but not in late endosomes. The brain contains more cholesterol than any other organ where it comprises roughly a quarter of the total free cholesterol in the human body. Of all the organic constituents of blood, only glucose is present in a higher molar concentration than cholesterol. Cholesterol esters appear to be the preferred form for transport in plasma and as a biologically inert storage (de-toxified) form. They do not contribute to membranes but are packed into intracellular lipid particles. Cholesterol molecules (i.e. cholesterol esters) are transported throughout the body via lipoprotein particles. The largest lipoproteins, which primarily transport fats from the intestinal mucosa to the liver, are called chylomicrons. They carry mostly triglyceride fats and cholesterol that are from food, especially internal cholesterol secreted by the liver into the bile. In the liver, chylomicron particles give up triglycerides and some cholesterol. They are then converted into low-density lipoprotein (LDL) particles, which carry triglycerides and cholesterol on to other body cells. In healthy individuals, the LDL particles are large and relatively few in number. In contrast, large numbers of small LDL particles are strongly associated with promoting atheromatous disease within the arteries. (Lack of information on LDL particle number and size is one of the major problems of conventional lipid tests.). In conditions with elevated concentrations of oxidized LDL particles, especially small LDL particles, cholesterol promotes atheroma plaque deposits in the walls of arteries, a condition known as atherosclerosis, which is a major contributor to coronary heart disease and other forms of cardiovascular disease. There is a worldwide trend to believe that lower total cholesterol levels tend to correlate with lower atherosclerosis event rates (though some studies refute this idea). As a result, cholesterol has become a very large focus for the scientific community trying to determine the proper amount of cholesterol needed in a healthy diet. However, the primary association of atherosclerosis with c... Constituent either free or as esters, of fish liver oils, lard, dairy fats, egg yolk and bran Cholesterol is the major sterol in mammals. It is making up 20-25\\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3]. Cholesterol is the major sterol in mammals. It is making up 20-25\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3].

   

Violaxanthin

(1R,3S,6S)-6-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol

C40H56O4 (600.4178)


Violaxanthin belongs to the class of organic compounds known as xanthophylls. These are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Xanthophylls arise by oxygenation of the carotene backbone. Thus, violaxanthin is considered to be an isoprenoid lipid molecule. Violaxanthin is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Violaxanthin is an orange-coloured pigment that is found in brown algae and various plants (e.g. pansies). It is biosynthesized from the epoxidation of zeaxanthin. Violaxanthin is a food additive that is only approved for use in Australia and New Zealand (INS: 161e) (PMID: 29890662). 3 (violaxanthin, zeaxanthin and antheraxanthin) participate in series of photo-induced interconversions known as violaxanthin cycle; Xanthophyll; a carotene epoxide that is precursor to capsanthin; cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin, catalyzed by 9-cis-epoxycarotenoid dioxygenase, is the key regulatory step of abscisic acid biosynthesis; one of 3 xanthophylls involved in evolution of plastids of green plants (oxygen evolution). (all-E)-Violaxanthin is found in many foods, some of which are orange bell pepper, passion fruit, pepper (c. annuum), and italian sweet red pepper. D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids

   

gamma-Carotene

2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaen-1-yl]-1,3,3-trimethylcyclohex-1-ene

C40H56 (536.4382)


gamma-Carotene is a cyclic carotene obtained by the cyclization of lycopene. It is found in human serum and breast milk (PMID: 9164160). Carotenoids are isoprenoid molecules that are widespread in nature and are typically seen as pigments in fruits, flowers, birds, and crustacea. Animals are unable to synthesize carotenoids de novo and rely upon the diet as a source of these compounds. Over recent years there has been considerable interest in dietary carotenoids with respect to their potential in alleviating age-related diseases in humans. This attention has been mirrored by significant advances in cloning most of the carotenoid genes and in the genetic manipulation of crop plants with the intention of increasing levels in the diet. Studies have shown an inverse relationship between the consumption of certain fruits and vegetables and the risk of epithelial cancer. Since carotenoids are among the micronutrients found in cancer-preventive foods, detailed qualitative and quantitative determination of these compounds, particularly in fruits and vegetables and in human plasma, have recently become increasingly important (PMID: 1416048, 15003396). Gamma-carotene, also known as γ-carotene, is a member of the class of compounds known as carotenes. Carotenes are a type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Gamma-carotene can be found in a number of food items such as corn, yellow bell pepper, fig, and papaya, which makes gamma-carotene a potential biomarker for the consumption of these food products.

   

Fucosterol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(E,2R)-5-propan-2-ylhept-5-en-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H48O (412.3705)


Characteristic sterol of seaweeds; isolated from bladderwrack Fucus vesiculosus. Fucosterol is found in lemon grass and coconut. Fucosterol is found in coconut. Characteristic sterol of seaweeds; isolated from bladderwrack Fucus vesiculosu Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1]. Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1].

   

24-Methylenecholesterol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methyl-5-methylideneheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C28H46O (398.3548)


24-Methylenecholesterol, also known as chalinasterol or ostreasterol, belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, 24-methylenecholesterol is considered to be a sterol lipid molecule. 24-Methylenecholesterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 24-Methylenecholesterol is involved in the biosynthesis of steroids. 24-Methylenecholesterol is converted from 5-dehydroepisterol by 7-dehydrocholesterol reductase (EC 1.3.1.21). 24-Methylenecholesterol is converted into campesterol by delta24-sterol reductase (EC 1.3.1.72). 24-methylenecholesterol is a 3beta-sterol having the structure of cholesterol with a methylene group at C-24. It has a role as a mouse metabolite. It is a 3beta-sterol and a 3beta-hydroxy-Delta(5)-steroid. It is functionally related to a cholesterol. 24-Methylenecholesterol is a natural product found in Echinometra lucunter, Ulva fasciata, and other organisms with data available. A 3beta-sterol having the structure of cholesterol with a methylene group at C-24. Constituent of clams and oysters 24-Methylenecholesterol (Ostreasterol), a natural marine sterol, stimulates cholesterol acyltransferase in human macrophages. 24-Methylenecholesterol possess anti-aging effects in yeast. 24-methylenecholesterol enhances honey bee longevity and improves nurse bee physiology[1][2][3].

   

Mauritianin

3-[4,5-dihydroxy-3-(3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl)oxy-6-[(3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl)oxymethyl]tetrahydropyran-2-yl]oxy-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one

C33H40O19 (740.2164)


Mauritianin is a glycoside and a member of flavonoids. 3-[4,5-Dihydroxy-3-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy-6-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxymethyl]oxan-2-yl]oxy-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one is a natural product found in Cerbera, Lysimachia nummularia, and other organisms with data available. Mauritianin is found in cereals and cereal products. Mauritianin is a constituent of seeds of quinoa (Chenopodium quinoa). Constituent of seeds of quinoa (Chenopodium quinoa). Mauritianin is found in cereals and cereal products and quinoa.

   

Biorobin

5,7-dihydroxy-2-(4-hydroxyphenyl)-3-[(3,4,5-trihydroxy-6-{[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]methyl}oxan-2-yl)oxy]-4H-chromen-4-one

C27H30O15 (594.1585)


Isolated from Medicago subspecies, Trigonella subspecies and other plant subspecies Kaempferol 3-robinobioside is found in herbs and spices and pulses. Biorobin is found in herbs and spices. Biorobin is isolated from Medicago species, Trigonella species and other plant species.

   

3-O-p-Coumaroylquinic acid

(1R,3R,4S,5R)-1,3,4-trihydroxy-5-{[(2E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxy}cyclohexane-1-carboxylic acid

C16H18O8 (338.1002)


3-O-p-Coumaroylquinic acid is found in apple. 3-O-p-Coumaroylquinic acid is found in cider apples, tea, cacao etc

   

Quercetin 3-rutinoside 7-galactoside

2-(3,4-dihydroxyphenyl)-5-hydroxy-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-[(3,4,5-trihydroxy-6-{[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]methyl}oxan-2-yl)oxy]-4H-chromen-4-one

C33H40O21 (772.2062)


Quercetin 3-rutinoside 7-galactoside is found in cereals and cereal products. Quercetin 3-rutinoside 7-galactoside is isolated from Fagopyrum tataricum (tartary buckwheat). Isolated from Fagopyrum tataricum (tartary buckwheat). Quercetin 3-rutinoside 7-galactoside is found in tartary buckwheat and cereals and cereal products.

   

Myricetin 3-robinobioside

5,7-dihydroxy-3-[(3,4,5-trihydroxy-6-{[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]methyl}oxan-2-yl)oxy]-2-(3,4,5-trihydroxyphenyl)-4H-chromen-4-one

C27H30O17 (626.1483)


Myricetin 3-robinobioside is found in fruits. Myricetin 3-robinobioside is a constituent of the roots of Syzygium cumini (jambolan). Constituent of the roots of Syzygium cumini (jambolan). Myricetin 3-robinobioside is found in java plum and fruits.

   

(1S,3R,4R,5R)-3-[3-(3,4-dihydroxyphenyl)prop-2-enoyloxy]-1,4,5-trihydroxy-cyclohexanecarboxylic acid

(1S,3R,4R,5R)-3-[3-(3,4-dihydroxyphenyl)prop-2-enoyloxy]-1,4,5-trihydroxy-cyclohexanecarboxylic acid

C16H18O9 (354.0951)


   

2-(3,7,12,16,20,24-Hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl)-1,3,3-trimethylcyclohexene

2-(3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaen-1-yl)-1,3,3-trimethylcyclohex-1-ene

C40H56 (536.4382)


   

Quercetin

2- (3,4-Dihydroxyphenyl) -3,5,7-trihydroxy-4H-1-benzopyran-4-one

C15H10O7 (302.0427)


Annotation level-1 COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials relative retention time with respect to 9-anthracene Carboxylic Acid is 0.898 D020011 - Protective Agents > D000975 - Antioxidants Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS relative retention time with respect to 9-anthracene Carboxylic Acid is 0.902 Acquisition and generation of the data is financially supported by the Max-Planck-Society IPB_RECORD: 1981; CONFIDENCE confident structure IPB_RECORD: 3301; CONFIDENCE confident structure IPB_RECORD: 3283; CONFIDENCE confident structure Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1]. Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1].

   

Fucosterol

(24E)-24-n-propylidenecholesterol;(3beta,24E)-stigmasta-5,24(28)-dien-3-ol;(E)-stigmasta-5,24(28)-dien-3beta-ol;24E-ethylidene-cholest-5-en-3beta-ol;fucosterin;trans-24-ethylidenecholesterol

C29H48O (412.3705)


A 3beta-sterol consisting of stigmastan-3beta-ol with double bonds at positions 5 and 24(28). (3b,5a,24(28)e)-stigmasta-7,24(28)-dien-3-ol belongs to stigmastanes and derivatives class of compounds. Those are sterol lipids with a structure based on the stigmastane skeleton, which consists of a cholestane moiety bearing an ethyl group at the carbon atom C24 (3b,5a,24(28)e)-stigmasta-7,24(28)-dien-3-ol is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). (3b,5a,24(28)e)-stigmasta-7,24(28)-dien-3-ol can be found in horseradish tree and sunflower, which makes (3b,5a,24(28)e)-stigmasta-7,24(28)-dien-3-ol a potential biomarker for the consumption of these food products. Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1]. Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1].

   

5-methylthio-1,2,3-trithiane

5-methylthio-1,2,3-trithiane

C4H8S4 (183.9509)


   

Cholesterol

(1S,2R,5S,10S,11S,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol

C27H46O (386.3548)


A cholestanoid consisting of cholestane having a double bond at the 5,6-position as well as a 3beta-hydroxy group. Disclaimer: While authors make an effort to ensure that the content of this record is accurate, the authors make no representations or warranties in relation to the accuracy or completeness of the record. This record do not reflect any viewpoints of the affiliation and organization to which the authors belong. Cholesterol is the major sterol in mammals. It is making up 20-25\\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3]. Cholesterol is the major sterol in mammals. It is making up 20-25\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3].

   

Thymidine

Thymidine

C10H14N2O5 (242.0903)


relative retention time with respect to 9-anthracene Carboxylic Acid is 0.220 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.211 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.213 Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication[1][2][3]. Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication[1][2][3].

   

Violaxanthin

(1S,4S,6R)-1-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-4-ol

C40H56O4 (600.4178)


D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids Cucurbitachrome 1 is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. Cucurbitachrome 1 is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Cucurbitachrome 1 can be found in a number of food items such as italian sweet red pepper, herbs and spices, fruits, and red bell pepper, which makes cucurbitachrome 1 a potential biomarker for the consumption of these food products. (all-e)-violaxanthin is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone (all-e)-violaxanthin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). (all-e)-violaxanthin can be found in a number of food items such as orange bell pepper, green bell pepper, passion fruit, and yellow bell pepper, which makes (all-e)-violaxanthin a potential biomarker for the consumption of these food products.

   

Zeaxanthin

(1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4R)-4-hydroxy-2,6,6-trimethyl-1-cyclohexenyl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,5,5-trimethyl-cyclohex-3-en-1-ol

C40H56O2 (568.428)


Meso-zeaxanthin (3R,3´S-zeaxanthin) is a xanthophyll carotenoid, as it contains oxygen and hydrocarbons, and is one of the three stereoisomers of zeaxanthin. Of the three stereoisomers, meso-zeaxanthin is the second most abundant in nature after 3R,3´R-zeaxanthin, which is produced by plants and algae. To date, meso-zeaxanthin has been identified in specific tissues of marine organisms and in the macula lutea, also known as the "yellow spot", of the human retina . Meso-zeaxanthin is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. Meso-zeaxanthin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Meso-zeaxanthin can be found in channel catfish, crustaceans, and fishes, which makes meso-zeaxanthin a potential biomarker for the consumption of these food products. D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids Window width for selecting the precursor ion was 3 Da.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 16HP2005 to the Mass Spectrometry Society of Japan.

   

2-Deoxyuridine

2-Deoxyuridine

C9H12N2O5 (228.0746)


   

2-deoxyuridine

2-deoxyuridine

C9H12N2O5 (228.0746)


A pyrimidine 2-deoxyribonucleoside having uracil as the nucleobase. D009676 - Noxae > D000963 - Antimetabolites COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine.

   

gamma-Carotene

beta,psi-Carotene

C40H56 (536.4382)


A cyclic carotene obtained by the cyclisation of lycopene. Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE is 10 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan.

   

Quercetin 3-rutinoside 7-galactoside

2-(3,4-dihydroxyphenyl)-5-hydroxy-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-[(3,4,5-trihydroxy-6-{[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]methyl}oxan-2-yl)oxy]-4H-chromen-4-one

C33H40O21 (772.2062)


   

Quertin

4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-

C15H10O7 (302.0427)


COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1]. Quercetin, a natural flavonoid, is a stimulator of recombinant SIRT1 and also a PI3K inhibitor with IC50 of 2.4 μM, 3.0 μM and 5.4 μM for PI3K γ, PI3K δ and PI3K β, respectively[1].

   

Stigmasterin

(3S,8S,9S,10R,13R,14S,17R)-17-[(E,2R,5S)-5-ethyl-6-methyl-hept-3-en-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H48O (412.3705)


C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol

   

Lanol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C27H46O (386.3548)


Cholesterol is the major sterol in mammals. It is making up 20-25\\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3]. Cholesterol is the major sterol in mammals. It is making up 20-25\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3].

   

Ostreasterol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methyl-5-methylidene-heptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C28H46O (398.3548)


24-Methylenecholesterol (Ostreasterol), a natural marine sterol, stimulates cholesterol acyltransferase in human macrophages. 24-Methylenecholesterol possess anti-aging effects in yeast. 24-methylenecholesterol enhances honey bee longevity and improves nurse bee physiology[1][2][3].

   

AIDS-113822

1-((2R,4S,5R)-4-Hydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1-H-pyrimidine-2,4-dione

C9H12N2O5 (228.0746)


D009676 - Noxae > D000963 - Antimetabolites COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine. 2'-Deoxyuridine could increase chromosome breakage and results in a decreased thymidylate synthetase activity. A known use of 2'-Deoxyuridine is as a precursor in the synthesis of Edoxudine.

   

N(6)-dimethylallyladenine

N-(3-Methylbut-2-EN-1-YL)-9H-purin-6-amine

C10H13N5 (203.1171)


A 6-isopentenylaminopurine in which has the isopentenyl double bond is located between the 2 and 3 positions of the isopentenyl group. D006133 - Growth Substances > D010937 - Plant Growth Regulators > D003583 - Cytokinins 6-(γ,γ-Dimethylallylamino)purine is a plant growth substance. 6-(γ,γ-Dimethylallylamino)purine is a plant growth substance.

   

5,7-Dihydroxy-2-(4-hydroxyphenyl)-3-[3,4,5-trihydroxy-6-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxymethyl]oxan-2-yl]oxychromen-4-one

5,7-Dihydroxy-2-(4-hydroxyphenyl)-3-[3,4,5-trihydroxy-6-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxymethyl]oxan-2-yl]oxychromen-4-one

C27H30O15 (594.1585)


   

(1r)-4-[(1e,3e,5e,7e,9e,11e,13e,15e,17e)-18-[(4r)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-3,5,5-trimethylcyclohex-2-en-1-ol

(1r)-4-[(1e,3e,5e,7e,9e,11e,13e,15e,17e)-18-[(4r)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-3,5,5-trimethylcyclohex-2-en-1-ol

C40H56O2 (568.428)


   

1,1,1-trimethyl-n-[9-(5-{[(3-methylbut-3-en-1-yl)oxy]methyl}-3,4-bis[(trimethylsilyl)oxy]oxolan-2-yl)purin-6-yl]silanamine

1,1,1-trimethyl-n-[9-(5-{[(3-methylbut-3-en-1-yl)oxy]methyl}-3,4-bis[(trimethylsilyl)oxy]oxolan-2-yl)purin-6-yl]silanamine

C24H45N5O4Si3 (551.2779)


   

(3s)-6-[(1e,3e,5e,7e,9e,11e,13e,15e,17e)-18-[(4r)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol

(3s)-6-[(1e,3e,5e,7e,9e,11e,13e,15e,17e)-18-[(4r)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol

C40H56O3 (584.4229)


   

24-α-ethylcholesterol

24-α-ethylcholesterol

C29H50O (414.3861)


   

succinamic acid, 3-amino-

succinamic acid, 3-amino-

C4H8N2O3 (132.0535)


   

(3ar,3br,9ar,9bs,11ar)-1-(5-ethyl-6-methylheptan-2-yl)-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-ol

(3ar,3br,9ar,9bs,11ar)-1-(5-ethyl-6-methylheptan-2-yl)-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-ol

C29H50O (414.3861)


   

5-(methylsulfanyl)-1,2,3-trithiane

5-(methylsulfanyl)-1,2,3-trithiane

C4H8S4 (183.9509)


   

1,1,1-trimethyl-n-{9-[(2r,3r,4r,5r)-5-{[(3-methylbut-3-en-1-yl)oxy]methyl}-3,4-bis[(trimethylsilyl)oxy]oxolan-2-yl]purin-6-yl}silanamine

1,1,1-trimethyl-n-{9-[(2r,3r,4r,5r)-5-{[(3-methylbut-3-en-1-yl)oxy]methyl}-3,4-bis[(trimethylsilyl)oxy]oxolan-2-yl]purin-6-yl}silanamine

C24H45N5O4Si3 (551.2779)


   

(3s)-3-amino-3-(c-hydroxycarbonimidoyl)propanoic acid

(3s)-3-amino-3-(c-hydroxycarbonimidoyl)propanoic acid

C4H8N2O3 (132.0535)


   

(2r,3r,4s,5r)-2-(6-aminopurin-9-yl)-5-(hydroxymethyl)-2-(3-methylbut-1-en-1-yl)oxolane-3,4-diol

(2r,3r,4s,5r)-2-(6-aminopurin-9-yl)-5-(hydroxymethyl)-2-(3-methylbut-1-en-1-yl)oxolane-3,4-diol

C15H21N5O4 (335.1593)


   

4-(methylsulfanyl)-1,2-dithiolane

4-(methylsulfanyl)-1,2-dithiolane

C4H8S3 (151.9788)