Classification Term: 1976
Flavonols (ontology term: CHEMONTID:0001136)
Compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position." [ISBN:9780412466205]
found 40 associated metabolites at category metabolite taxonomy ontology rank level.
Ancestor: Flavones
Child Taxonomies: There is no child term of current ontology term.
Herbacetin
Herbacetin is a pentahydroxyflavone that is kaempferol substituted by a hydroxy group at position 8. It is a natural flavonoid from flaxseed which exerts antioxidant, anti-inflammatory and anticancer activities. It has a role as an EC 4.1.1.17 (ornithine decarboxylase) inhibitor, an antineoplastic agent, an apoptosis inducer, an angiogenesis inhibitor, a plant metabolite, an antilipemic drug, an anti-inflammatory agent and an EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor. It is a pentahydroxyflavone and a 7-hydroxyflavonol. It is functionally related to a kaempferol. Herbacetin is a natural product found in Sedum anglicum, Sedum apoleipon, and other organisms with data available. See also: Larrea tridentata whole (part of). Isolated from pollen of Camellia sinensis (tea). Pollenin A is found in tea. Herbacetin is a natural flavonoid from flaxseed, exerts various pharmacological activities, including antioxidant, anti-inflammatory and anticancer effects[1]. Herbacetin is an Ornithine decarboxylase (ODC) allosteric inhibitor, directly binds to Asp44, Asp243, and Glu384 on ODC. Ornithine decarboxylase (ODC) is a rate-limiting enzyme in the first step of polyamine biosynthesis[2]. Herbacetin is a natural flavonoid from flaxseed, exerts various pharmacological activities, including antioxidant, anti-inflammatory and anticancer effects[1]. Herbacetin is an Ornithine decarboxylase (ODC) allosteric inhibitor, directly binds to Asp44, Asp243, and Glu384 on ODC. Ornithine decarboxylase (ODC) is a rate-limiting enzyme in the first step of polyamine biosynthesis[2].
3-Hydroxyflavone
Flavonol is a monohydroxyflavone that is the 3-hydroxy derivative of flavone. It is a monohydroxyflavone and a member of flavonols. It is a conjugate acid of a flavonol(1-). 3-Hydroxyflavone is a natural product found in Acacia retinodes, Acacia holosericea, and other organisms with data available. Constituent of cabbage. 3-Hydroxyflavone is found in many foods, some of which are red raspberry, brassicas, papaya, and pomegranate. 3-Hydroxyflavone is found in brassicas. 3-Hydroxyflavone is a constituent of cabbage Flavonol is an endogenous metabolite. Flavonol is an endogenous metabolite.
Kaempferol
Kaempferol is a tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Acting as an antioxidant by reducing oxidative stress, it is currently under consideration as a possible cancer treatment. It has a role as an antibacterial agent, a plant metabolite, a human xenobiotic metabolite, a human urinary metabolite, a human blood serum metabolite and a geroprotector. It is a member of flavonols, a 7-hydroxyflavonol and a tetrahydroxyflavone. It is a conjugate acid of a kaempferol oxoanion. Kaempferol is a natural product found in Lotus ucrainicus, Visnea mocanera, and other organisms with data available. Kaempferol is a natural flavonoid which has been isolated from Delphinium, Witch-hazel, grapefruit, and other plant sources. Kaempferol is a yellow crystalline solid with a melting point of 276-278 degree centigrade. It is slightly soluble in water, and well soluble in hot ethanol and diethyl ether. Kaempferol is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Cannabis sativa subsp. indica top (part of); Tussilago farfara flower (part of). Kaempferol, also known as rhamnolutein or c.i. 75640, belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, kaempferol is considered to be a flavonoid molecule. A tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Kaempferol is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Kaempferol exists in all eukaryotes, ranging from yeast to humans. Kaempferol is a bitter tasting compound. Kaempferol is found, on average, in the highest concentration within a few different foods, such as saffrons, capers, and cumins and in a lower concentration in lovages, endives, and cloves. Kaempferol has also been detected, but not quantified, in several different foods, such as shallots, pine nuts, feijoa, kombus, and chicory leaves. This could make kaempferol a potential biomarker for the consumption of these foods. Kaempferol is a potentially toxic compound. Very widespread in the plant world, e.g. in Brassicaceae, Apocynaceae, Dilleniaceae, Ranunculaceae, Leguminosae, etc. Found especies in broccoli, capers, chives, kale, garden cress, fennel, lovage, dill weed and tarragon [CCD] A tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4. Acting as an antioxidant by reducing oxidative stress, it is currently under consideration as a possible cancer treatment. CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3906; ORIGINAL_PRECURSOR_SCAN_NO 3905 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3916; ORIGINAL_PRECURSOR_SCAN_NO 3915 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3928; ORIGINAL_PRECURSOR_SCAN_NO 3927 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4291; ORIGINAL_PRECURSOR_SCAN_NO 4290 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3918; ORIGINAL_PRECURSOR_SCAN_NO 3917 CONFIDENCE standard compound; INTERNAL_ID 898; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3915; ORIGINAL_PRECURSOR_SCAN_NO 3914 Acquisition and generation of the data is financially supported in part by CREST/JST. INTERNAL_ID 2358; CONFIDENCE Reference Standard (Level 1) CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2358 CONFIDENCE standard compound; INTERNAL_ID 47 CONFIDENCE standard compound; ML_ID 45 Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4]. Kaempferol (Kempferol), a flavonoid found in many edible plants, inhibits estrogen receptor α expression in breast cancer cells and induces apoptosis in glioblastoma cells and lung cancer cells by activation of MEK-MAPK. Kaempferol can be uesd for the research of breast cancer[1][2][3][4].
Quercetin
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].
6-Methoxy-7-methylquercetin
6-methoxy-7-methylquercetin, also known as eupatoletin, is a member of the class of compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, 6-methoxy-7-methylquercetin is considered to be a flavonoid lipid molecule. 6-methoxy-7-methylquercetin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). 6-methoxy-7-methylquercetin can be found in german camomile, which makes 6-methoxy-7-methylquercetin a potential biomarker for the consumption of this food product. Eupatolitin is a tetrahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 5, 3 and 4 and methoxy groups at positions 6 and 7 respectively. It is a tetrahydroxyflavone, a dimethoxyflavone and a member of flavonols. It is functionally related to a flavone. Eupatolitin is a natural product found in Dicoma tomentosa, Haplopappus foliosus, and other organisms with data available.
Rhamnocitrin
Rhamnocitrin, also known as 3,4,5-trihydroxy-7-methoxyflavone or 7-methylkaempferol, is a member of the class of compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, rhamnocitrin is considered to be a flavonoid lipid molecule. Rhamnocitrin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Rhamnocitrin can be found in cloves and lemon balm, which makes rhamnocitrin a potential biomarker for the consumption of these food products. Rhamnocitrin is a monomethoxyflavone that is the 7-methyl ether derivative of kaempferol. It has a role as a plant metabolite. It is a trihydroxyflavone, a member of flavonols and a monomethoxyflavone. It is functionally related to a kaempferol. Rhamnocitrin is a natural product found in Ageratina altissima, Chromolaena odorata, and other organisms with data available. Hydroxygenkwanin (7-O-Methylluteolin), a natural flavonoid compound, is one of the main components of Lilac Daphne. Hydroxygenkwanin has anti-oxidant ability, anti-glioma ability and anticancer effect[1][2]. Hydroxygenkwanin (7-O-Methylluteolin), a natural flavonoid compound, is one of the main components of Lilac Daphne. Hydroxygenkwanin has anti-oxidant ability, anti-glioma ability and anticancer effect[1][2]. Rhamnocitrin is a flavonoid isolated from astragalus complanatus R. Br. (Sha-yuan-zi)[1]. Rhamnocitrin is a scavenger of DPPH with an IC50 of 28.38 mM. Rhamnocitrin has anti-oxidant, anti-inflammatory and an-tiatherosclerosis activity[2]. Rhamnocitrin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=569-92-6 (retrieved 2024-12-30) (CAS RN: 569-92-6). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Myricetin
Myricetin, also known as cannabiscetin or myricetol, belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, myricetin is considered to be a flavonoid lipid molecule. A hexahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 3, 4, 5, 5 and 7. Myricetin is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Myricetin is found, on average, in the highest concentration within a few different foods, such as common walnuts, carobs, and fennels and in a lower concentration in welsh onions, yellow bell peppers, and jutes. Myricetin has also been detected, but not quantified in several different foods, such as napa cabbages, sesames, mixed nuts, lichee, and garden cress. Myricetin is a hexahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 3, 4, 5, 5 and 7. It has been isolated from the leaves of Myrica rubra and other plants. It has a role as a cyclooxygenase 1 inhibitor, an antineoplastic agent, an antioxidant, a plant metabolite, a food component, a hypoglycemic agent and a geroprotector. It is a hexahydroxyflavone and a 7-hydroxyflavonol. It is a conjugate acid of a myricetin(1-). Myricetin is a natural product found in Ficus auriculata, Visnea mocanera, and other organisms with data available. Myricetin is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Quercetin (related). Flavanol found in a wide variety of foodstuffs especially in red table wine, bee pollen, bilberries, blueberries, bog whortleberries, broad beans, Chinese bajberry, corn poppy leaves, cranberries, crowberries, blackcurrants, dock leaves, fennel, grapes, parsley, perilla, rutabaga, dill weed and tea (green and black). Glycosides are also widely distributed. Potential nutriceutical showing anti-HIV activity A hexahydroxyflavone that is flavone substituted by hydroxy groups at positions 3, 3, 4, 5, 5 and 7. It has been isolated from the leaves of Myrica rubra and other plants. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS [Raw Data] CB066_Myricetin_pos_30eV_CB000028.txt [Raw Data] CB066_Myricetin_pos_20eV_CB000028.txt [Raw Data] CB066_Myricetin_pos_40eV_CB000028.txt [Raw Data] CB066_Myricetin_pos_50eV_CB000028.txt [Raw Data] CB066_Myricetin_pos_10eV_CB000028.txt [Raw Data] CB066_Myricetin_neg_10eV_000019.txt [Raw Data] CB066_Myricetin_neg_40eV_000019.txt [Raw Data] CB066_Myricetin_neg_50eV_000019.txt [Raw Data] CB066_Myricetin_neg_20eV_000019.txt [Raw Data] CB066_Myricetin_neg_30eV_000019.txt Myricetin is a common plant-derived flavonoid with a wide range of activities including strong anti-oxidant, anticancer, antidiabetic and anti-inflammatory activities. Myricetin is a common plant-derived flavonoid with a wide range of activities including strong anti-oxidant, anticancer, antidiabetic and anti-inflammatory activities.
Isorhamnetin
Isorhamnetin is the methylated metabolite of quercetin. Quercetin is an important dietary flavonoid with in vitro antioxidant activity. However, it is found in human plasma as conjugates with glucuronic acid, sulfate or methyl groups, with no significant amounts of free quercetin present. Isorhamnetin prevents endothelial cell injuries from oxidized LDL via inhibition of lectin-like ox-LDL receptor-1 upregulation, interference of ox-LDL-mediated intracellular signaling pathway (p38MAPK activation, NF-kappaB nuclear translocation, eNOS expression) and the antioxidant activity of isorhamnetin. Isorhamnetin prevents endothelial dysfunction, superoxide production, and overexpression of p47phox induced by angiotensin II. Isorhamnetin appears to be a potent drug against esophageal cancer due to its in vitro potential to not only inhibit proliferation but also induce apoptosis of Eca-109 cells. (PMID: 15493462, 17368593, 17374653, 16963021). Isorhamnetin is a monomethoxyflavone that is quercetin in which the hydroxy group at position 3 is replaced by a methoxy group. It has a role as an EC 1.14.18.1 (tyrosinase) inhibitor, an anticoagulant and a metabolite. It is a 7-hydroxyflavonol, a tetrahydroxyflavone and a monomethoxyflavone. It is functionally related to a quercetin. It is a conjugate acid of an isorhamnetin(1-). Isorhamnetin is a natural product found in Lotus ucrainicus, Strychnos pseudoquina, and other organisms with data available. Isorhamnetin is a metabolite found in or produced by Saccharomyces cerevisiae. See also: Peumus boldus leaf (part of). Widespread flavonol found especially in bee pollen, chives, corn poppy leaves, garden cress, fennel, hartwort, red onions, pears, dillweed, parsley and tarragon. Isorhamnetin is found in many foods, some of which are italian sweet red pepper, carrot, yellow wax bean, and lemon balm. A monomethoxyflavone that is quercetin in which the hydroxy group at position 3 is replaced by a methoxy group. Acquisition and generation of the data is financially supported in part by CREST/JST. Isorhamnetin is a flavonoid compound extracted from the Chinese herb Hippophae rhamnoides L.. Isorhamnetin suppresses skin cancer through direct inhibition of MEK1 and PI3K. Isorhamnetin is a flavonoid compound extracted from the Chinese herb Hippophae rhamnoides L.. Isorhamnetin suppresses skin cancer through direct inhibition of MEK1 and PI3K.
Morin
Morin is a pentahydroxyflavone that is 7-hydroxyflavonol bearing three additional hydroxy substituents at positions 2 4 and 5. It has a role as an antioxidant, a metabolite, an antihypertensive agent, a hepatoprotective agent, a neuroprotective agent, an anti-inflammatory agent, an antineoplastic agent, an antibacterial agent, an EC 5.99.1.2 (DNA topoisomerase) inhibitor and an angiogenesis modulating agent. It is a pentahydroxyflavone and a 7-hydroxyflavonol. Morin is a natural product found in Lotus ucrainicus, Psidium guajava, and other organisms with data available. Constituent of various woods, e.g. Morus alba (white mulberry). First isol. in 1830. Morin is found in many foods, some of which are blackcurrant, european cranberry, bilberry, and fruits. Morin is found in bilberry. Morin is a constituent of various woods, e.g. Morus alba (white mulberry). First isolated in 1830 A pentahydroxyflavone that is 7-hydroxyflavonol bearing three additional hydroxy substituents at positions 2 4 and 5. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D020011 - Protective Agents > D000975 - Antioxidants Morin, a plant-derived flavonoid, possesses low antioxidant activity. Morin is a fluorescing chelating agent used in aluminum speciation[1][2]. Morin, a plant-derived flavonoid, possesses low antioxidant activity. Morin is a fluorescing chelating agent used in aluminum speciation[1][2].
Norizalpinin
Galangin is a 7-hydroxyflavonol with additional hydroxy groups at positions 3 and 5 respectively; a growth inhibitor of breast tumor cells. It has a role as an antimicrobial agent, an EC 3.1.1.3 (triacylglycerol lipase) inhibitor and a plant metabolite. It is a trihydroxyflavone and a 7-hydroxyflavonol. Galangin is a natural product found in Alpinia conchigera, Populus koreana, and other organisms with data available. Constituent of Galanga root (Alpinia officinarum). Galangin is found in many foods, some of which are apple, garden onion (variety), sweet orange, and grape wine. A 7-hydroxyflavonol with additional hydroxy groups at positions 3 and 5 respectively; a growth inhibitor of breast tumor cells. Norizalpinin is found in apple. Norizalpinin is a constituent of Galanga root (Alpinia officinarum) D009676 - Noxae > D009153 - Mutagens Galangin (Norizalpinin) is?an?agonist/antagonist?of the?arylhydrocarbon?receptor. Galangin (Norizalpinin) also shows inhibition of CYP1A1 activity. Galangin (Norizalpinin) is?an?agonist/antagonist?of the?arylhydrocarbon?receptor. Galangin (Norizalpinin) also shows inhibition of CYP1A1 activity.
Laricitrin
Laricitrin, also known as 3-O-methylmyricetin or 3,4,5,5,7-pentahydroxy-3-methoxyflavone, belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, laricitrin is considered to be a flavonoid lipid molecule. Laricitrin is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. BioTransformer predicts that laricitrin is a product of isorhamnetin metabolism via a hydroxylation-of-benzene-ortho-to-edg reaction catalyzed by the CYP1A2, CYP2C8, CYP2C9, and CYP3A4 enzymes (PMID: 30612223).
Kaempferide
Kaempferide is a monomethoxyflavone that is the 4-O-methyl derivative of kaempferol. It has a role as an antihypertensive agent and a metabolite. It is a trihydroxyflavone, a monomethoxyflavone and a 7-hydroxyflavonol. It is functionally related to a kaempferol. It is a conjugate acid of a kaempferide(1-). Kaempferide is a natural product found in Ageratina altissima, Chromolaena odorata, and other organisms with data available. Isolated from roots of Alpinia officinarum (lesser galangal). Kaempferide is found in many foods, some of which are herbs and spices, cloves, sour cherry, and european plum. Kaempferide is found in cloves. Kaempferide is isolated from roots of Alpinia officinarum (lesser galangal). A monomethoxyflavone that is the 4-O-methyl derivative of kaempferol. Acquisition and generation of the data is financially supported in part by CREST/JST. Kaempferide is an O-methylated flavonol also found in kaempferol. Kaempferide has antiviral activity. Kaempferide is an orally active flavonol isolated from Hippophae rhamnoides L. Kaempferide has anticancer, anti-inflammatory, antioxidant, antidiabetic, antiobesity, antihypertensive, and neuroprotective activities. Kaempferide induces apoptosis. Kaempferide promotes osteogenesis through antioxidants and can be used in osteoporosis research[1][2][3][4][5][6]. Kaempferide is an O-methylated flavonol also found in kaempferol. Kaempferide has antiviral activity.
3,4',7-Trihydroxyflavone
3,4,7-Trihydroxyflavone is found in chickpea. 3,4,7-Trihydroxyflavone is isolated from Cicer arietinum (chickpea). Isolated from Cicer arietinum (chickpea). 3,4,7-Trihydroxyflavone is found in chickpea, lentils, and pulses. 3,7,4'-Trihydroxyflavone, isolated from Rhus javanica var. roxburghiana, is a flavonoid with DNA strand-scission activity[1]. 3,7,4'-Trihydroxyflavone, isolated from Rhus javanica var. roxburghiana, is a flavonoid with DNA strand-scission activity[1].
DIBOA trihexose
Syringetin,?a flavonoid derivative, is associated with increased BMP-2 production. Syringetin stimulates osteoblast differentiation at various stages, from maturation to terminally differentiated osteoblasts[1]. Syringetin,?a flavonoid derivative, is associated with increased BMP-2 production. Syringetin stimulates osteoblast differentiation at various stages, from maturation to terminally differentiated osteoblasts[1].
Patuletin
Pigment from flowers of French marigold Tagetes patula. Patuletin is found in german camomile, herbs and spices, and spinach. Patuletin is found in german camomile. Patuletin is a pigment from flowers of French marigold Tagetes patul D004791 - Enzyme Inhibitors
Tambulin
Tambulin, also known as herbacetin 7,8,4-trimethyl ether, is a member of the class of compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, tambulin is considered to be a flavonoid lipid molecule. Tambulin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Tambulin can be found in sunflower, which makes tambulin a potential biomarker for the consumption of this food product.
Limocitrin
Limocitrin is a hydroxyflavan. Limocitrin is a natural product found in Sedum anglicum, Sedum forsterianum, and other organisms with data available. Limocitrin is found in citrus. Limocitrin is a constituent of citrus fruit peels Constituent of citrus fruit peels. Limocitrin is found in lemon and citrus.
Prudomestin
Prudomestin is a hydroxyflavan. Prudomestin is a natural product found in Zanthoxylum acanthopodium and Prunus domestica with data available. Prudomestin is found in european plum. Prudomestin is isolated from heartwood of Prunus domestica (plum Isolated from heartwood of Prunus domestica (plum). Prudomestin is found in fruits and european plum. Prudomestin, isolated from the heartwood of Prunus domestica, shows potent xanthine oxidase (XO) inhibitory activity (IC50≈6?μM)[1][2].
Spinacetin
Isolated from spinach (Spinacia oleracea). Spinacetin is found in german camomile, green vegetables, and spinach. Spinacetin is found in german camomile. Spinacetin is isolated from spinach (Spinacia oleracea
3,5,6-Trihydroxy-3',4',7-trimethoxyflavone
3,5,6-Trihydroxy-3,4,7-trimethoxyflavone is found in citrus. 3,5,6-Trihydroxy-3,4,7-trimethoxyflavone is a constituent of fingered citron fruits (Citrus medica). Constituent of fingered citron fruits (Citrus medica). 3,5,6-Trihydroxy-3,4,7-trimethoxyflavone is found in citrus.
3',4'-Di-O-methylquercetin
3,4-Di-O-methylquercetin is found in beverages. 3,4-Di-O-methylquercetin is isolated from Dillenia indica (elephant apple). Isolated from Dillenia indica (elephant apple). 3,4-Dimethylquercetin is found in beverages and fruits.
Natsudaidain
Natsudaidain is a polyphenol compound found in foods of plant origin (PMID: 20428313)
Austalide L
Austalide L is a mycotoxin produced by Aspergillus ustu
5-Hydroxy-7,8-dimethoxyflavonol
5-Hydroxy-7,8-dimethoxyflavonol is found in herbs and spices. 5-Hydroxy-7,8-dimethoxyflavonol is isolated from above-ground parts of Helichrysum italicum (curry plant
3,3',7-Trihydroxy-4'-methoxyflavone
3,3,7-Trihydroxy-4-methoxyflavone is isolated from quebracho heartwoo
Limocitrol
Limocitrol is found in citrus. Limocitrol is a constituent of citrus fruits. Constituent of citrus fruits. Limocitrol is found in lemon and citrus.
3,4',5,7-Tetrahydroxy-6-methoxyflavone
Constituent of the buds of the wild cherry Prunus avium. 3,4,5,7-Tetrahydroxy-6-methoxyflavone is found in many foods, some of which are safflower, sweet cherry, fruits, and german camomile. 3,4,5,7-Tetrahydroxy-6-methoxyflavone is found in fruits. 3,4,5,7-Tetrahydroxy-6-methoxyflavone is a constituent of the buds of the wild cherry Prunus avium
Pollenitin
Pollenitin is found in tea. Pollenitin is isolated from the pollen of Camellia sinensis (tea). Isolated from the pollen of Camellia sinensis (tea). Pollenitin is found in tea.
3,3',4',5,6,7,8-Heptahydroxyflavone
3,3,4,5,6,7,8-Heptahydroxyflavone is isolated from petals of African marigold (Tagetes erecta
3,3',4',5,5',8-Hexahydroxyflavone
3,3,4,5,5,8-Hexahydroxyflavone is found in coffee and coffee products. 3,3,4,5,5,8-Hexahydroxyflavone is isolated from Cassia tora (charota). Isolated from Cassia tora (charota). 3,3,4,5,5,8-Hexahydroxyflavone is found in coffee and coffee products, herbs and spices, and pulses.
Quercetin 3'-sulfate
Quercetin 3-sulfate is a polyphenol metabolite detected in biological fluids (PMID: 20428313).
Peonidin 3-sophoroside
Peonidin 3-sophoroside is a polyphenol metabolite detected in biological fluids (PMID: 20428313).
3,5,8-Trihydroxy-3',4',7-trimethoxyflavone
3,5,8-Trihydroxy-3,4,7-trimethoxyflavone is found in citrus. 3,5,8-Trihydroxy-3,4,7-trimethoxyflavone is a constituent of citron peel (Citrus medica). Constituent of citron peel (Citrus medica). 3,4,7-Trimethylgossypetin is found in citrus.
5-Hydroxy-3,3',7,8-tetramethoxy-4',5'-methylenedioxyflavone
5-Hydroxy-3,3,7,8-tetramethoxy-4,5-methylenedioxyflavone is found in citrus. 5-Hydroxy-3,3,7,8-tetramethoxy-4,5-methylenedioxyflavone is a constituent of the dried fruit of Citrus reticulata (mandarin). Constituent of the dried fruit of Citrus reticulata (mandarin). 5-Hydroxy-3,3,7,8-tetramethoxy-4,5-methylenedioxyflavone is found in citrus.
RFamide-related peptide 1
Apigenin 7-(6'-O-acetyl)-glucoside
Apigenin 7-(6-o-acetyl)-glucoside is a member of the class of compounds known as flavonoid-7-o-glycosides. Flavonoid-7-o-glycosides are phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C7-position. Apigenin 7-(6-o-acetyl)-glucoside is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Apigenin 7-(6-o-acetyl)-glucoside can be found in german camomile, which makes apigenin 7-(6-o-acetyl)-glucoside a potential biomarker for the consumption of this food product.
3,4',5,6,7,8-Hexahydroxyflavone
3,4,5,6,7,8-hexahydroxyflavone is a member of the class of compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. 3,4,5,6,7,8-hexahydroxyflavone is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). 3,4,5,6,7,8-hexahydroxyflavone can be found in almond, which makes 3,4,5,6,7,8-hexahydroxyflavone a potential biomarker for the consumption of this food product.
