Exact Mass: 196.9992034
Exact Mass Matches: 196.9992034
Found 474 metabolites which its exact mass value is equals to given mass value 196.9992034,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Selenomethionine
L-selenomethionine is the L-enantiomer of selenomethionine. It is an enantiomer of a D-selenomethionine. It is a tautomer of a L-selenomethionine zwitterion. Selenomethionine is a naturally occuring amino acid in some plant materials such as cereal grains, soybeans and enriched yeast but it cannot be synthesized from animals or humans. It can be produced from post-structural modifications. *In vivo*, selenomethionine plays an essential role in acting as an antioxidant, where it depletes reactive oxygen species (ROS) and aids in the formation and recycling of glutathione, another important antioxidant. In comparison to selenite, which is the inorganic form of selenium, the organic form of selenomethionine is more readily absorbed in the human body. Selenomethionin is used in biochemical laboratories where its incorporation into proteins that need to be visualized enhances the performance of X-ray crystallography. L-Selenomethionine is the amino acid methionine with selenium substituting for the sulphur moiety. Methionine is an essential amino acid in humans, whereas selenium is a free-radical scavenging anti-oxidant, essential for the protection of various tissues from the damages of lipid peroxidation. As a trace mineral that is toxic in high doses, selenium is a cofactor for glutathione peroxidase, an anti-oxidant enzyme that neutralizes hydrogen peroxide. L-Selenomethionine is considered a safe, efficacious form of selenium and is readily bioavailable. Selenium may be chemoprotective for certain cancers, particularly prostate cancer. (NCI04) Diagnostic aid in pancreas function determination. Selenomethionine (CAS: 1464-42-2) is an amino acid containing selenium that cannot be synthesized by higher animals but can be obtained from plant material. Selenomethionine is the major seleno-compound in cereal grains (wheat grain, maize, and rice), soybeans, and enriched yeast. Seleno-compounds present in plants may have a profound effect on the health of animals and human subjects. It is now known that the total Se content cannot be used as an indication of its efficacy, but knowledge of individual selenocompounds is necessary to fully assess the significance. Thus, speciation of the seleno-compounds has moved to the forefront. Since animals and man are dependent upon plants for their nutritional requirements, this makes the types of seleno-compounds in plants even more critical. Se enters the food chain through incorporation into plant proteins, mostly as selenocysteine and selenomethionine at normal Se levels. There are two possible pathways for the catabolism of selenomethionine. One is the transsulfuration pathway via selenocystathionine to produce selenocysteine, which in turn is degraded into H2Se by the enzyme beta-lyase. The other pathway is the transamination-decarboxylation pathway. It was estimated that 90\\\\% of methionine is metabolized through this pathway and thus could be also the major route for selenomethionine catabolism (PMID:14748935). Found in onion, cabbage, coco de mono (Lecythis elliptica), Brazil nuts (Bertholletia excelsa), wheat grains and other plants. Dietary supplement for avoidance of Se deficiency in humans and ruminants C26170 - Protective Agent > C275 - Antioxidant The L-enantiomer of selenomethionine. L-SelenoMethionine, an L-isomer of Selenomethionine, is a major natural food-form of selenium. L-SelenoMethionin is a cancer chemopreventive agent that can reduce cancer incidence by dietary supplementation and induce apoptosis of cancer cells. L-SelenoMethionine also can increase expression of glutathione peroxidase[1][2][3]. Selenomethionine is a naturally occurring amino acid containing selenium and is a common natural food source.
Tauropine
A derivative of L-alanine having a 2-sulfoethyl group attached to the alpha-nitrogen.
Phosphoguanidinoacetate
Phosphoguanidinoacetate is formed due to phosphorylation of urinary guanidinoacetic acid in the presence of ATP by guanidinoacetate kinase. (PMID: 1667626) [HMDB] Phosphoguanidinoacetate is formed due to phosphorylation of urinary guanidinoacetic acid in the presence of ATP by guanidinoacetate kinase. (PMID: 1667626).
3-Hydroxy-2-methylpyridine-4,5-dicarboxylate
3-Hydroxy-2-methylpyridine-4,5-dicarboxylate is an intermediate in vitamin B6 metabolism(KEGG ID C04604). It is the third to last step in the synthesis of succinate semialdehyde, which is an intermediate in butanoate metabolism. 3-Hydroxy-2-methylpyridine-4,5-dicarboxylate is generated from 2-Methyl-3-hydroxy-5-formylpyridine-4-carboxylate and is then converted to 3-hydroxy-2-methylpyridine-5-carboxylate. [HMDB] 3-Hydroxy-2-methylpyridine-4,5-dicarboxylate is an intermediate in vitamin B6 metabolism(KEGG ID C04604). It is the third to last step in the synthesis of succinate semialdehyde, which is an intermediate in butanoate metabolism. 3-Hydroxy-2-methylpyridine-4,5-dicarboxylate is generated from 2-Methyl-3-hydroxy-5-formylpyridine-4-carboxylate and is then converted to 3-hydroxy-2-methylpyridine-5-carboxylate.
Clavaldehyde
An organic heterobicyclic compound that is clavulanic acid in which the allylic alcohol group has been oxidised to the corresponding aldehyde.
2-Amino-5-phosphonopentanoic acid
DL-AP5 (2-APV) is a competitive NMDA (N-methyl-D-aspartate) receptor antagonist. DL-AP5 shows significantly antinociceptive activity. DL-AP5 specifically blocks on channels in the rabbit retina[1][2][3].
Gold
Gold is a chemical element with the symbol Au (from the Latin aurum) and atomic number 79. It is a highly sought-after precious metal which, for many centuries, has been used as money, a store of value and in jewelery. The metal occurs as nuggets or grains in rocks, underground "veins" and in alluvial deposits. It is one of the coinage metals. Gold is dense, soft, shiny and the most malleable and ductile of the known metals. Pure gold has an attractive bright yellow color. Physiologically, it exists as an ion in the body. There is increasing documentation of allergic contact dermatitis and other effects from gold jewelry, gold dental restorations, and gold implants. These effects were especially pronounced among females wearing body-piercing gold objects. One estimate of the prevalence of gold allergy worldwide is 13\\%, as judged by patch tests with monovalent organogold salts. Eczema of the head and neck was the most common response of individuals hypersensitive to gold, and sensitivity can last for at least several years. Ingestion of beverages containing flake gold can result in allergic-type reactions similar to those seen in gold-allergic individuals exposed to gold through dermal contact and other routes. Studies with small laboratory mammals and injected doses of colloidal gold showed increased body temperatures, accumulations in reticular cells, and dose enhancement in tumor therapy; gold implants were associated with tissue injuries. It is proposed that Au degrees toxicity to mammals is associated, in part, with formation of the more reactive Au+ and Au3+ species. Contact allergy to gold as demonstrated by patch testing is very common among patients with eczematous disease and seems to be even more frequent among patients with complaints from the oral cavity. There is a positive correlation between gold allergy and the presence of dental gold. Gold allergy is often found in patients with non-specific stomatitides as well as in those with lichenoid reactions or with only subjective symptoms from the oral cavity. The therapeutic effect of substituting other dental materials for gold alloys is conspicuous in casuistic reports but less impressive in larger patient materials. The amount of dental gold is correlated qualitatively and quantitatively to the blood level of gold and the effects if any of circulating blood gold are unknown. There is clearly a need for prospective studies in the field and gold sodium thiosulfate is considered an important item in the dental series for patch testing. (PMID: 15258315, 12423401). It is used in food decoration and colouring especies in Europe. Not permitted for food use in U.S.A. Gold is found in many foods, some of which are cashew nut, common hazelnut, coconut, and pistachio.
4-hydroxy-3-nitrophenylacetate
4-hydroxy-3-nitrophenylacetate, also known as 3-nitro-4-hydroxyphenylacetic acid, is slightly soluble (in water). It is a mildly acidic compound. This metabolite is a member of the class of compounds known as nitrophenols. Nitrophenols are compounds containing a nitrophenol moiety, which consists of a benzene ring bearing both a hydroxyl group and a nitro group on two different ring carbon atoms. Free nitrotyrosine undergoes metabolism to form 3-nitro-4-hydroxyphenylacetic acid (NHPA) which is excreted in the urine (Wikipedia). However, it is not known whether NHPA is derived exclusively from metabolism of nitrotyrosine, or whether it can be formed by nitration of circulating para -hydroxyphenylacetic acid (PHPA), a metabolite of tyrosine (PMID: 12797864). Since the plasma concentration of PHPA is markedly higher than free nitrotyrosine (approx. 400-fold), the nitration of high-circulating endogenous PHPA to form NHPA becomes very significant and accounts for the majority of NHPA excreted in urine (PMID: 12797864).
vanillyl mandelate
Vanillyl mandelate, also known as 3-methoxy-4-hydroxymandelate or vanilmandelic acid, is a member of the class of compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. Vanillyl mandelate is soluble (in water) and a weakly acidic compound (based on its pKa). Vanillyl mandelate can be found in a number of food items such as brazil nut, feijoa, kiwi, and redcurrant, which makes vanillyl mandelate a potential biomarker for the consumption of these food products. Vanillylmandelic acid (VMA) is a chemical intermediate in the synthesis of artificial vanilla flavorings and is an end-stage metabolite of the catecholamines, epinephrine, and norepinephrine. It is produced via intermediary metabolites .
O-Acetyl-L-homoserine hydrochloride
C6H12ClNO4 (197.04548219999998)
2-(4-chloro-[1,3,5]triazin-2-ylamino)-2-methyl-propionitrile
Selenomethionine
A selenoamino acid that is the selenium analogue of methionine. C26170 - Protective Agent > C275 - Antioxidant Selenomethionine, also known as (2s)-2-amino-4-(methylseleno)butanoate or 2-amino-4-(methylselenyl)butyric acid, is a member of the class of compounds known as alpha amino acids. Alpha amino acids are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Selenomethionine is soluble (in water) and a moderately acidic compound (based on its pKa). Selenomethionine can be found in a number of food items such as shiitake, canada blueberry, sesbania flower, and spearmint, which makes selenomethionine a potential biomarker for the consumption of these food products. Selenomethionine can be found primarily in blood and urine, as well as throughout most human tissues. Selenomethionine exists in all eukaryotes, ranging from yeast to humans. In humans, selenomethionine is involved in the selenoamino acid metabolism. Moreover, selenomethionine is found to be associated with prostate cancer. Selenomethionine is a naturally occurring amino acid. The L-selenomethionine enantiomer is the main form of selenium found in Brazil nuts, cereal grains, soybeans, and grassland legumes, while Se-methylselenocysteine, or its γ-glutamyl derivative, is the major form of selenium found in Astragalus, Allium, and Brassica species. In vivo, selenomethionine is randomly incorporated instead of methionine. Selenomethionine is readily oxidized . L-SelenoMethionine, an L-isomer of Selenomethionine, is a major natural food-form of selenium. L-SelenoMethionin is a cancer chemopreventive agent that can reduce cancer incidence by dietary supplementation and induce apoptosis of cancer cells. L-SelenoMethionine also can increase expression of glutathione peroxidase[1][2][3]. Selenomethionine is a naturally occurring amino acid containing selenium and is a common natural food source.
5-PYRIDIN-2-YL-4,5-DIHYDRO-1,3,4-THIADIAZOLE-2-THIOL
3-methylhistamine dihydrochloride
3-Methylhistamine dihydrochloride is a degradation product of histamine. 3-Methylhistamine dihydrochloride, a methylated product of histamine, is associated with immune response and shows upregulation in the vaccinated mice[1][2].
4-(chloromethyl)-2-(furan-2-yl)-5-methyl-1,3-oxazole
Selenomethionine Se-75
C1446 - Radiopharmaceutical Compound > C2124 - Radioconjugate
5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylic acid
Methyl 6-amino-2H-thieno[3,2-c]pyrazole-2-carboxylate
D-AP5(mM/ml)
D-AP5 (D-APV) is a selective and competitive NMDA receptor antagonist with a Kd of 1.4 μM. D-AP5 (D-APV) inhibits the glutamate binding site of NMDA receptors[1][2].
1,3,4-Oxadiazol-2-amine, 5-phenyl-, monohydrochloride
C8H8ClN3O (197.03558679999998)
6-Chloroimidazo[1,2-b]pyridazine-3-carboxylic acid
2-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile
(R)-2,2-DIMETHYLTHIAZOLIDINE-4-CARBOXYLIC ACID HYDROCHLORIDE
(S)-2-AMINO-5-METHOXY-5-OXOPENTANOIC ACID HYDROCHLORIDE
C6H12ClNO4 (197.04548219999998)
2-Chloro-8-fluoro-4-quinazolinamine
C8H5ClFN3 (197.01560120000002)
7-fluoro-1,3-benzothiazole-2-carboxylic acid
C8H4FNO2S (196.99467760000002)
Cyclopropanecarboxylic acid, 1-[(trifluoroacetyl)amino]- (9CI)
2-(2-Methyl-1H-imidazol-1-yl)ethanamine dihydrochloride
4-(2,4-difluorophenyl)-3(2H,4H)-1,2,4-triazolone
C8H5F2N3O (197.04006639999997)
5-hydroxypyridine-3,4-dicarboxylic acid methyl ester
(R)-(-)-α-Methylhistamine dihydrochloride
(R)-(-)-α-Methylhistamine dihydrochloride is a potent, selective and brain-penetrant agonist of H3 histamine receptor, with a Kd of 50.3 nM[1][2]. (R)-(-)-α-Methylhistamine dihydrochloride can enhance memory retention, attenuates memory impairment in rats[3][4][5].
2-Chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid
1-(6-Chloro-pyridin-3-yl)-cyclopropanecarboxylic acid
2-Chloro-6-fluoro-4-quinazolinamine
C8H5ClFN3 (197.01560120000002)
1,3-benzothiazole-2-carbonyl chloride
C8H4ClNOS (196.97021239999998)
(4-methyl-2-(trifluoromethyl)thiazol-5-yl)methanol
C6H6F3NOS (197.01221819999998)
3-(4-Chloro-1,2,5-thiadiazol-3-yl)pyridine
C7H4ClN3S (196.98144539999998)
4-aminobenzotrifluoride hydrochloride
C7H7ClF3N (197.02190879999998)
7-chloro-6-fluoro-1H-quinolin-4-one
C9H5ClFNO (197.00436820000002)
2-chloro-7-fluoroquinazolin-4-amine
C8H5ClFN3 (197.01560120000002)
6-Chloroimidazo[1,2-b]pyridazine-2-carboxylic acid
3-chloropyrazolo[1,5-a]pyrimidine-2-carboxylic acid
6-Chloro-1H-pyrazolo[4,3-b]pyridine-3-carboxylic acid
2,5-Dichloro-3-(difluoromethyl)pyridine
C6H3Cl2F2N (196.96106020000002)
2-CHLORO-BENZO[E][1,3]THIAZIN-4-ONE
C8H4ClNOS (196.97021239999998)
5-FLUORO-2-BENZOTHIAZOLECARBOXYLIC ACID
C8H4FNO2S (196.99467760000002)
5-(2-HYDROXYETHYL)-4-(TRIFLUOROMETHYL)THIAZOLE
C6H6F3NOS (197.01221819999998)
6-fluoro-1,3-benzothiazole-2-carboxylic acid
C8H4FNO2S (196.99467760000002)
azetidin-1-yl-(5-chloropyrazin-2-yl)methanone
C8H8ClN3O (197.03558679999998)
1-Methylhistamine dihydrochloride
1-Methylhistamine dihydrochloride is a histamine metabolite[1].
(R)-(-)-α-Methylhistamine dihydrobromide,(R)-(-)-α-Methyl-1H-imidazole-4-ethanaminedihydrobromide
4-amino-4-carboxytetrahydrothiopyran hydrochloride
1-(3-chloropyrazin-2-yl)pyrrolidin-2-one
C8H8ClN3O (197.03558679999998)
Dimethyl iminodiacetate hydrochloride
C6H12ClNO4 (197.04548219999998)
7-chloroimidazo[1,2-b]pyridazine-2-carboxylic acid
4-chloro-1H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid
4-Chloro-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid
4-Chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylic acid
5-chloro-1H-imidazo[4,5-b]pyridine-2-carboxylic acid
6-chloropyrazolo[1,5-a]pyrimidine-2-carboxylic acid
L-beta-Homoglutamic acid hydrochloride
C6H12ClNO4 (197.04548219999998)
4-Methylhistamine dihydrochloride
4-Methylhistamine (dihydrochloride) is the potent agonist of histamine 4 receptor (H4R). 4-Methylhistamine (dihydrochloride) has the potential for the research of immune-related diseases such as cancer and autoimmune disorders[1].
2-(4-METHYL-1H-IMIDAZOL-2-YL)-ETHYLAMINE DIHYDROCHLORIDE
7-chloro-Thieno[3,2-b]pyridine-2-carboxaldehyde
C8H4ClNOS (196.97021239999998)
6-Fluoro-4H-furo[3,2-b]pyrrole-5-carboxylic acid ethyl ester
5-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyridine-7-carboxylic acid
3,5-Dichloro-4-(difluoroMethyl)pyridine, 97\\%
C6H3Cl2F2N (196.96106020000002)
3-CHLORO-4-FLUOROBENZOYLACETONITRILE
C9H5ClFNO (197.00436820000002)
1-(4-methyl-1H-imidazol-2-yl)ethanamine(SALTDATA: 1.95HCl 0.5H2O 0.15NaCl)
4-Cyanobenzohydrazide hydrochloride
C8H8ClN3O (197.03558679999998)
3,6-Dihydro-3-methyl-5-(methylthio)-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one
[(1,2-Dimethyl-1H-imidazol-5-yl)methyl]amine dihydrochloride
(2S,4S)-4-METHYLGLUTAMIC ACID HYDROCHLORIDE
C6H12ClNO4 (197.04548219999998)
4-Fluorobenzo[d]thiazole-2-carboxylic acid
C8H4FNO2S (196.99467760000002)
2-{[4-(4-FLUOROPHENYL)-6-(TRIFLUOROMETHYL)-PYRIMIDIN-2-YL]THIO}PROPANOIC ACID
2-chloro-5-(4-fluorophenyl)-1,3-oxazole
C9H5ClFNO (197.00436820000002)
1-(5-chlorothiophen-2-yl)cyclobutane-1-carbonitrile
3-Pyridinecarboxylicacid,6-[(aminothioxomethyl)amino]-(9CI)
Dichloro(3-isocyanatopropyl)methylsilane
C5H9Cl2NOSi (196.98304439999998)
Benzenamine,3-(trifluoromethyl)-, hydrochloride (1:1)
C7H7ClF3N (197.02190879999998)
1-METHYL-1H-IMIDAZO[4,5-B]PYRIDINE-2-CARBOXALDEHYDE HYDROCHLORIDE
C8H8ClN3O (197.03558679999998)
Gold (198Au) colloidal
V - Various > V10 - Therapeutic radiopharmaceuticals > V10A - Antiinflammatory agents
5-(Ethylthio)-3-(Trifluoromethyl)-1H-1,2,4-Triazole
C5H6F3N3S (197.02345119999998)
2-(methylthio)-5-(1H-pyrrol-1-yl)-1,3,4-thiadiazole
(2S)-2-ammonio-4-(methylselanyl)butanoate
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
O-phosphonato-L-homoserine(2-)
C4H8NO6P-2 (197.00892380000002)
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
(3E)-3-[(1R,5R,6S)-5-hydroxy-7-oxabicyclo[4.1.0]heptan-2-ylidene]pyruvate
A 2-oxo monocarboxylic acid anion that is the conjugate base of (3E)-3-[(1R,5R,6S)-5-hydroxy-7-oxabicyclo[4.1.0]heptan-2-ylidene]pyruvic acid, obtained by deprotonation of the carboxy group.
3-[(2Z,5R)-5-hydroxy-7-oxabicyclo[4.1.0]heptan-2-ylidene]-2-oxopropanoate
2-Amino-4-hydroxy-4-[hydroxy(methyl)phosphoryl]butanoic acid
Vanillylmandelate
A hydroxy monocarboxylic acid anion that is the conjugate base of vanillylmandelic acid.
3-[(2-hydroxyethyl)disulfanyl]-L-alanine
An S-substituted L-cysteine where the S-substituent is specified as (2-hydroxyethyl)sulfane.
2-AMINO-4,6-DINITROTOLUENE
An amino-nitrotoluene that is 4,6-dinitrotoluene substituted at position 2 by an amino group.
4-Amino-2,6-dinitrotoluene
An amino-nitrotoluene that is 2,6-dinitrotoluene substituted at position 4 by an amino group.
L-selenomethionine zwitterion
An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of L-selenomethionine; major species at pH 7.3.
DL-AP5
The 5-phosphono derivative of 2-aminopentanoic acid; acts as an N-methyl-D-aspartate receptor antagonist. DL-AP5 (2-APV) is a competitive NMDA (N-methyl-D-aspartate) receptor antagonist. DL-AP5 shows significantly antinociceptive activity. DL-AP5 specifically blocks on channels in the rabbit retina[1][2][3].
O-phosphonato-L-homoserine(2-)
Dianion of O-phospho-L-homoserine having anionic phosphate and carboxy groups and a protonated amino group.
Syringate
A methoxybenzoate that is the conjugate base of syringic acid, obtained by deprotonation of the carboxy group.
Phosphoguanidinoacetic acid
A guanidinoacetate having a phospho group attached to the primary amino part of the guanidine moiety.