Exact Mass: 118.019559934
Exact Mass Matches: 118.019559934
Found 436 metabolites which its exact mass value is equals to given mass value 118.019559934,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Succinic acid
Succinic acid appears as white crystals or shiny white odorless crystalline powder. pH of 0.1 molar solution: 2.7. Very acid taste. (NTP, 1992) Succinic acid is an alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. It has a role as a nutraceutical, a radiation protective agent, an anti-ulcer drug, a micronutrient and a fundamental metabolite. It is an alpha,omega-dicarboxylic acid and a C4-dicarboxylic acid. It is a conjugate acid of a succinate(1-). A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Succinic acid is a dicarboxylic acid. The anion, succinate, is a component of the citric acid cycle capable of donating electrons to the electron transfer chain. Succinic acid is created as a byproduct of the fermentation of sugar. It lends to fermented beverages such as wine and beer a common taste that is a combination of saltiness, bitterness and acidity. Succinate is commonly used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. Succinate plays a role in the citric acid cycle, an energy-yielding process and is metabolized by succinate dehydrogenase to fumarate. Succinate dehydrogenase (SDH) plays an important role in the mitochondria, being both part of the respiratory chain and the Krebs cycle. SDH with a covalently attached FAD prosthetic group, binds enzyme substrates (succinate and fumarate) and physiological regulators (oxaloacetate and ATP). Oxidizing succinate links SDH to the fast-cycling Krebs cycle portion where it participates in the breakdown of acetyl-CoA throughout the whole Krebs cycle. Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e.g. malate. (A3509) Mutations in the four genes encoding the subunits of succinate dehydrogenase are associated with a wide spectrum of clinical presentations (i.e.: Huntingtons disease. (A3510). Succinate also acts as an oncometabolite. Succinate inhibits 2-oxoglutarate-dependent histone and DNA demethylase enzymes, resulting in epigenetic silencing that affects neuroendocrine differentiation. A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid (succinate) is a dicarboxylic acid. It is an important component of the citric acid or TCA cycle and is capable of donating electrons to the electron transfer chain. Succinate is found in all living organisms ranging from bacteria to plants to mammals. In eukaryotes, succinate is generated in the mitochondria via the tricarboxylic acid cycle (TCA). Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e. g. malate (PMID 16143825). Succinate can exit the mitochondrial matrix and function in the cytoplasm as well as the extracellular space. Succinate has multiple biological roles including roles as a metabolic intermediate and roles as a cell signalling molecule. Succinate can alter gene expression patterns, thereby modulating the epigenetic landscape or it can exhibit hormone-like signaling functions (PMID: 26971832). As such, succinate links cellular metabolism, especially ATP formation, to the regulation of cellular function. Succinate can be broken down or metabolized into fumarate by the enzyme succinate dehydrogenase (SDH), which is part of the electron transport chain involved in making ATP. Dysregulation of succinate synthesis, and therefore ATP synthesis, can happen in a number of genetic mitochondrial diseases, such as Leigh syndrome, and Melas syndrome. Succinate has been found to be associated with D-2-hydroxyglutaric aciduria, which is an inborn error of metabolism. Succinic acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by succinate. In humans, urinary succinic acid is produced by Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Enterobacter, Acinetobacter, Proteus mirabilis, Citrobacter frundii, Enterococcus faecalis (PMID: 22292465). Succinic acid is also found in Actinobacillus, Anaerobiospirillum, Mannheimia, Corynebacterium and Basfia (PMID: 22292465; PMID: 18191255; PMID: 26360870). Succinic acid is widely distributed in higher plants and produced by microorganisms. It is found in cheeses and fresh meats. Succinic acid is a flavouring enhancer, pH control agent [DFC]. Succinic acid is also found in yellow wax bean, swamp cabbage, peanut, and abalone. An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID S004 Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].
3-Hydroxyisovaleric acid
3-Hydroxyisovaleric acid is a normal human metabolite excreted in the urine. It is a byproduct of the leucine degradation pathway. Production of 3-hydroxyisovaleric acid begins with the conversion of 3-methylcrotonyl-CoA into 3-methylglutaconyl-CoA in the mitochondria by the biotin-dependent enzyme methylcrotonyl-CoA carboxylase. Biotin deficiencies, certain lifestyle habits (smoking), or specific genetic conditions can reduce methylcrotonyl-CoA carboxylase activity. This reduction can lead to a buildup of 3-methylcrotonyl-CoA, which is converted into 3-hydroxyisovaleryl-CoA by the enzyme enoyl-CoA hydratase. Increased concentrations of 3-methylcrotonyl-CoA and 3-hydroxyisovaleryl-CoA can lead to a disruption of the esterified CoA:free CoA ratio, and ultimately to mitochondrial toxicity. Detoxification of these metabolic end products occur via the transfer of the 3-hydroxyisovaleryl moiety to carnitine forming 3-hydroxyisovaleric acid-carnitine or 3HIA-carnitine, which is then transferred across the inner mitochondrial membrane where 3-hydroxyisovaleric acid is released as the free acid (PMID: 21918059). 3-Hydroxyisovaleric acid has been found to be elevated in smokers and in subjects undergoing long-term anticonvulsant therapy with carbamazepine and/or phenytoin. These levels are elevated due to impairment of renal reclamation of biotin. Levels may also be increased from prolonged consumption of raw egg-whites (PMID: 16895887, 9523856, 15447901, 9176832) (OMIM: 210210, 253270, 600529, 253260, 246450, 210200, 238331). When present in sufficiently high levels, 3-hydroxyisovaleric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 3-hydroxyisovaleric acid are associated with at least a dozen inborn errors of metabolism, including 3-hydroxy-3-methylglutaryl-CoA lyase deficiency, 3-methylglutaconic aciduria type I, biotinidase deficiency and isovaleric aciduria, dihydrolipoamide dehydrogenase deficiency, 3-methylcrotonyl-CoA carboxylase 1 deficiency, 3-hydroxy-3-methylglutaryl-CoA lyase deficiency, late-onset multiple carboxylase deficiency, holocarboxylase synthetase deficiency, and 3-methylcrotonyl-CoA carboxylase 2 deficiency. 3-Hydroxyisovaleric acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 3-Hydroxyisovaleric acid is a normal human metabolite excreted in the urine. Elevated levels of this compound are found in several inherited disorders such as Dihydrolipoamide dehydrogenase Deficiency, 3-Methylcrotonyl-CoA carboxylase 1 deficiency, 3-Hydroxy-3-methylglutaryl-CoA lyase deficiency (3-hydroxy-3-methylglutaryl -CoA lyase Deficiency, Biotinidase deficiency multiple carboxylase deficiency late-onset , Late onset multiple carboxylase deficiency, HolMcarboxylase synthetase deficiency, 3-Methylcrotonyl-CoA carboxylase 2 deficiency. 3-Hydroxyisovaleric acid is also elevated in smokers, in subjects undergoing long-term anticonvulsant therapy with carbamazepine and/or phenytoin. These levels are elevated due to impairment of renal reclamation of biotin. Levels may also be increased from prolonged consumption of raw egg-whites (PMID: 16895887, 9523856, 15447901, 9176832)(OMIM: 210210, 253270, 600529, 253260, 246450, 210200, 238331) [HMDB] 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].
Methylmalonic acid
Methylmalonic acid is a malonic acid derivative, which is a vital intermediate in the metabolism of fat and protein. In particular, the coenzyme A-linked form of methylmalonic acid, methylmalonyl-CoA, is converted into succinyl-CoA by methylmalonyl-CoA mutase in a reaction that requires vitamin B12 as a cofactor. In this way, methylmalonic acid enters the Krebs cycle and is thus part of one of the anaplerotic reactions. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This inborn error of metabolism is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA. Methylmalonic acid is also found to be associated with other inborn errors of metabolism, including cobalamin deficiency, cobalamin malabsorption, malonyl-CoA decarboxylase deficiency, and transcobalamin II deficiency. When present in sufficiently high levels, methylmalonic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of methylmalonic acid are associated with at least 5 inborn errors of metabolism, including Malonyl CoA decarboxylase deficiency, Malonic Aciduria, Methylmalonate Semialdehyde Dehydrogenase Deficiency, Methylmalonic Aciduria and Methylmalonic Aciduria Due to Cobalamin-Related Disorders. Methylmalonic acid is an organic acid and abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, kidney abnormalities, liver damage, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA. [HMDB] KEIO_ID M014 Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer. Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer.
Benzimidazole
CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3587; ORIGINAL_PRECURSOR_SCAN_NO 3586 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2303; ORIGINAL_PRECURSOR_SCAN_NO 2299 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2278; ORIGINAL_PRECURSOR_SCAN_NO 2277 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3578; ORIGINAL_PRECURSOR_SCAN_NO 3577 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3557; ORIGINAL_PRECURSOR_SCAN_NO 3556 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2260; ORIGINAL_PRECURSOR_SCAN_NO 2259 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2273; ORIGINAL_PRECURSOR_SCAN_NO 2271 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2284; ORIGINAL_PRECURSOR_SCAN_NO 2282 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3585; ORIGINAL_PRECURSOR_SCAN_NO 3584 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3606; ORIGINAL_PRECURSOR_SCAN_NO 3604 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3575; ORIGINAL_PRECURSOR_SCAN_NO 3574 CONFIDENCE standard compound; INTERNAL_ID 1348; DATASET 20200303_ENTACT_RP_MIX504; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2284; ORIGINAL_PRECURSOR_SCAN_NO 2282 D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics CONFIDENCE standard compound; INTERNAL_ID 8120 KEIO_ID B007
Mesoxalic acid
Occurs in Medicago sativa (alfalfa). Tentatively identified in rhizosphere of sterile white mustard plants (Sinapis alba). Mesoxalic acid is found in cereals and cereal products, herbs and spices, and common pea. Mesoxalic acid is found in cereals and cereal products. Mesoxalic acid occurs in Medicago sativa (alfalfa). Tentatively identified in rhizosphere of sterile white mustard plants (Sinapis alba
5-Hydroxypentanoic acid
5-Hydroxypentanoic acid belongs to the class of organic compounds known as straight chain fatty acids. These are fatty acids with a straight aliphatic chain. 5-Hydroxypentanoic acid has been found to be a microbial metabolite (PMID: 20615997).
Benzofuran
Benzofuran, also known as coumaron or 1-oxaindene, belongs to the class of organic compounds known as benzofurans. These are organic compounds containing a benzene ring fused to a furan. Furan is a five-membered aromatic ring with four carbon atoms and one oxygen atom. Benzothiophene, an analog with a sulfur instead of the oxygen atom. Benzofuran is a drug. benzofuran has been detected, but not quantified, in several different foods, such as alcoholic beverages, coffee and coffee products, herbs and spices, root vegetables, and tea. This could make benzofuran a potential biomarker for the consumption of these foods. This colourless liquid is a component of coal tar. Benzofuran is the heterocyclic compound consisting of fused benzene and furan rings. Benzofuran is a potentially toxic compound. For example, psoralen is a benzofuran derivative that occurs in several plants. Isobenzofuran, the isomer with oxygen in the adjacent position. Benzofuran is a Maillard product. It is a heterocyclic compound consisting of fused benzene and furan rings. It is the parent of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants. It is found in many foods, some of which are herbs and spices, tea, alcoholic beverages, and coffee and coffee products.
3-Hydroxyvaleric acid
3-Hydroxyvaleric acid is a 5-carbon ketone body. 3-Hydroxyvaleric acid is anaplerotic, meaning it can refill the pool of TCA cycle intermediates.
2-Hydroxyvaleric acid
2-Hydroxyvaleric acid is an organic acid present in human biofluids. Its presence in urine has been associated with lactic acidosis, which occurs in Succinic Acidemia (OMIM 600335), a syndrome of organic acidemia associated with congenital lactic acidosis and decreased NADH-cytochrome c reductase activity. 2-Hydroxyvaleric acid presence associated with lactic acidosis has also been found in Propionyl-CoA carboxylase deficiency (OMIM 253260), or Multiple carboxylase deficiency (MCD), an autosomal recessive metabolic disorder characterized primarily by cutaneous and neurologic abnormalities. (PMID: 9389332, 1790187, 3378323, 3383430, 7313494) [HMDB] 2-Hydroxyvaleric acid is an organic acid present in human biofluids. Its presence in urine has been associated with lactic acidosis, which occurs in Succinic Acidemia (OMIM 600335), a syndrome of organic acidemia associated with congenital lactic acidosis and decreased NADH-cytochrome c reductase activity. 2-Hydroxyvaleric acid presence associated with lactic acidosis has also been found in Propionyl-CoA carboxylase deficiency (OMIM 253260), or Multiple carboxylase deficiency (MCD), an autosomal recessive metabolic disorder characterized primarily by cutaneous and neurologic abnormalities. (PMID: 9389332, 1790187, 3378323, 3383430, 7313494).
2-Hydroxy-3-methylbutyric acid
2-Hydroxy-3-methylbutyric acid (also known as 2-hydroxyisovaleric acid) is a metabolite found in the urine of patients with phenylketonuria (PMID: 7978272), methylmalonic acidemia, propionic acidemia, 3-ketothiolase deficiency, isovaleric acidemia, 3-methylcrotonylglycemia, 3-hydroxy-3-methylglutaric acidemia, multiple carboxylase deficiency, glutaric aciduria, ornithine transcarbamylase deficiency, glyceroluria, tyrosinemia type I, galactosemia, and maple syrup urine disease (PMID: 11048741). 2-Hydroxyisovaleric acid has also been identified in the urine of patients with lactic acidosis and ketoacidosis (PMID: 884872), and in the urine of severely asphyxiated babies (PMID: 1610944). 2-Hydroxyisovaleric acid originates mainly from ketogenesis and from the metabolism of valine, leucine, and isoleucine (PMID: 6434570). 2-Hydroxy-3-methylbutyric acid has been identified in the human placenta (PMID: 32033212). 2-Hydroxy-3-methylbutyric acid is a metabolite found in the urine of patients with Phenylketonuria (PMID 7978272), Methylmalonic acidemia, Propionic acidemia, 3-Ketothiolase deficiency, Isovaleric acidemia, 3-Methylcrotonylglycemia, 3-Hydroxy-3-methylglutaric acidemia, Multiple carboxylase deficiency, Glutaric aciduria, Ornithine transcarbamylase deficiency, glyceroluria, Tyrosinemia type 1, Galactosemia, and Maple syrup urine disease (PMID 11048741) [HMDB] 2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.
2-Hydroxy-2-methylbutyric acid
2-Hydroxy-2-methylbutyric acid, also known as (+/-)-2-hydroxy-2-methylbutanoate or 2-methyl-2-hydroxybutyric acid, belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group. 2-Hydroxy-2-methylbutyric acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2-Hydroxy-2-methylbutyric acid is an unusual metabolite found in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease. 2-Hydroxy-2-methylbutyric acid is also a secondary metabolite found in human urine after exposure to the gasoline additive tert-amyl-Me-ether (TAME). (PMID 11504147, 10828258, 9260660, 11482739) [HMDB] (±)-2-Hydroxy-2-methylbutyric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=3739-30-8 (retrieved 2024-07-02) (CAS RN: 3739-30-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2-Hydroxy-2-methylbutanoic acid, an unusual metabolite, is associated with 2-hydroxyglutaric aciduria and maple syrup urine disease.
(2S,3R)-3-Hydroxy-2-methylbutanoic acid
3-Hydroxy-2-methyl-butanoic acid (HMBA)is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably b-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375) [HMDB] 3-Hydroxy-2-methylbutanoic acid (HMBA) is a normal urinary metabolite involved in isoleucine catabolism, beta-oxidation of fatty acids, and ketogenesis. HMDB is excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID: 10755375).
3-Hydroxyvaleric acid
3-Hydroxyvaleric acid may be products of the condensation of propionyl-CoA with acetyl-CoA catalyzed by 3-oxoacyl-CoA thiolases. An increase amount of 3-hydroxyvaleric acid can be found in methylmalonic acidemia and propionic acidemia. (PMID: 630060) [HMDB] 3-Hydroxyvaleric acid may be products of the condensation of propionyl-CoA with acetyl-CoA catalyzed by 3-oxoacyl-CoA thiolases. An increase amount of 3-hydroxyvaleric acid can be found in methylmalonic acidemia and propionic acidemia. (PMID: 630060). 3-Hydroxyvaleric acid is a 5-carbon ketone body. 3-Hydroxyvaleric acid is anaplerotic, meaning it can refill the pool of TCA cycle intermediates.
Erythrono-1,4-lactone
Erythrono-1,4-lactone has been identified as a lactone of tetronic acid in the urine from normal adults and neonates. The formation of this compound may be a consequence of lactonization of erythronic acid during the extraction/isolation process. Lactonization is a potential problem when measuring acids that contain a hydroxyl group at the number 4 carbon, as lactones are formed under acidic conditions. Evidence indicates that most 4-hydroxy acids do not normally exist to any appreciable extent as lactones in urine. (PMID 1192581). [HMDB] Erythrono-1,4-lactone has been identified as a lactone of tetronic acid in the urine from normal adults and neonates. The formation of this compound may be a consequence of lactonization of erythronic acid during the extraction/isolation process. Lactonization is a potential problem when measuring acids that contain a hydroxyl group at the number 4 carbon, as lactones are formed under acidic conditions. Evidence indicates that most 4-hydroxy acids do not normally exist to any appreciable extent as lactones in urine. (PMID 1192581).
Ethyl lactate
Ethyl lactate, also known as ethyl 2-hydroxypropanoate, is the ethyl ester obtained of 2-hydroxypropanoic acid. It is a secondary alcohol, a lactate ester and an ethyl ester. It derives from a 2-hydroxypropanoic acid. It is an organic compound with the formula CH3CH(OH)CO2CH2CH3. Ethyl lactate is found naturally in small quantities in a wide variety of foods including wine, chicken, and various fruits. The odor of ethyl lactate when dilute is mild, buttery, creamy, with hints of fruit and coconut. It is also found in cabbage, peas, vinegar, bread, roasted chicken, butter, blackberry, pineapple, raspberry and various wines and spirits. This compound is considered biodegradable and can be used as a water-rinsable degreaser. he odor of ethyl lactate when dilute is mild, buttery, creamy, with hints of fruit and coconut. Ethyl lactate is produced from biological sources, and can be either the levo (S) form or dextro (R) form, depending on the organism that is the source of the lactic acid. Most biologically sourced ethyl lactate is ethyl (−)-L-lactate (ethyl (S)-lactate). Ethyl lactate is also produced industrially from petrochemical stocks, and this ethyl lactate consists of the racemic mixture of levo and dextro forms. Because both enantiomers are found in nature, and because ethyl lactate is easily biodegradable, it is considered to be a "green solvent". Ethyl lactate and its aqueous solutions are used as sustainable media for organic synthesis. Due to its relatively low toxicity, ethyl lactate is used commonly in pharmaceutical preparations, food additives, and fragrances. Ethyl lactate is also used as solvent for nitrocellulose, cellulose acetate, and cellulose ethers. Present in cabbage, peas, vinegar, bread, roasted chicken, butter, blackberry, pineapple, raspberry and various wines and spirits. Flavouring agent
xi-3-Hydroxy-2-oxobutanoic acid
xi-3-Hydroxy-2-oxobutanoic acid is found in fruits. xi-3-Hydroxy-2-oxobutanoic acid is isolated from fruits of cowberry (Vaccinium vitis-idaea). xi-3-Hydroxy-2-oxobutanoic acid is a component of cheese aroma. Isolated from fruits of cowberry (Vaccinium vitis-idaea). Component of cheese aroma. xi-3-Hydroxy-2-oxobutanoic acid is found in milk and milk products and fruits.
7-Azaindolizine
7-Azaindolizine is found in animal foods. 7-Azaindolizine is a component of roast beef aroma. Component of roast beef aroma. 7-Azaindolizine is found in animal foods.
xi-2,3-Octadiene-5,7-diyn-1-ol
xi-2,3-Octadiene-5,7-diyn-1-ol is found in mushrooms. xi-2,3-Octadiene-5,7-diyn-1-ol is isolated from Lentinus edodes (shiitake). Isolated from Lentinus edodes (shiitake). xi-2,3-Octadiene-5,7-diyn-1-ol is found in mushrooms.
Methyl 3-hydroxybutyrate
Methyl 3-hydroxybutyrate belongs to beta hydroxy acids and derivatives class of compounds. Those are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom. Thus, methyl 3-hydroxybutyrate is considered to be a fatty ester lipid molecule. Methyl 3-hydroxybutyrate is soluble (in water) and an extremely weak acidic compound (based on its pKa). Methyl 3-hydroxybutyrate has a mild and apple taste. Methyl 3-hydroxybutyrate is a constituent of pineapple; Methyl 3-hydroxybutyrate is a flavouring ingredient [CCD].
xi-2-Methyl-1,3-oxathiane
xi-2-Methyl-1,3-oxathiane is found in onion-family vegetables. xi-2-Methyl-1,3-oxathiane is a constituent of the buds of Chinese chives (Allium tuberosum). Constituent of the buds of Chinese chives (Allium tuberosum). xi-2-Methyl-1,3-oxathiane is found in onion-family vegetables.
3,5,7-Octatriyn-1-ol
3,5,7-Octatriyn-1-ol is found in mushrooms. 3,5,7-Octatriyn-1-ol is isolated from Lentinus edodes (shiitake). Isolated from Lentinus edodes (shiitake). 3,5,7-Octatriyn-1-ol is found in mushrooms.
4-Hydroxy-2-oxobutanoic acid
4-Hydroxy-2-oxobutanoic acid is found in fruits. 4-Hydroxy-2-oxobutanoic acid is isolated from fruits of Vaccinium vitis-idaea (cowberry) and from Vaccinium oxycoccus (small cranberry
(S)-Methylbutanethioic acid
(S)-Methylbutanethioic acid belongs to the class of organic compounds known as carbothioic S-acids. These are organic acids with the general formula RCS-OH (R=H, organic group).
1-(Methylthio)-2-butanone
1-(Methylthio)-2-butanone is found in coffee and coffee products. 1-(Methylthio)-2-butanone is a constituent of coffee concentrate. 1-(Methylthio)-2-butanone is a flavouring agent. Constituent of coffee concentrate. Flavouring agent. 1-(Methylthio)-2-butanone is found in coffee and coffee products.
2,4,6-Octatriyn-1-ol
2,4,6-Octatriyn-1-ol is found in mushrooms. 2,4,6-Octatriyn-1-ol is a constituent of Kuehneromyces mutabilis (two-toned wood tuft) and Russula vesca (bare-toothed russule) Constituent of Kuehneromyces mutabilis (two-toned wood tuft) and Russula vesca (bare-toothed russule). 2,4,6-Octatriyn-1-ol is found in mushrooms.
2-Methyl-3-hydroxybutyric acid
3-Hydroxy-2-methyl-butanoic acid (HMBA) is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably beta-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency, which is a genetic disorder. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375). 3-Hydroxy-2-methyl-butanoic acid (HMBA)is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably beta-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375) [HMDB]
3-hydroxy-2-ethylpropionate
Isolated excretion of 2-ethylhydracrylic acid (2-methylbutyrylglycine; 2-MBG) is the hallmark of short/branched-chain acyl-CoA dehydrogenase deficiency (SBCADD), a defect in the proximal pathway of L-isoleucine oxidation (PMID: 15615815). Normal human urine contains small amounts (less than 4 mg/g of creatinine) of 2-ethylhydracrylic acid. Urinary excretion of 2-ethylhydracrylic acid is variably increased in defects of isoleucine oxidation at distal steps in the catabolic pathway (3-oxoacyl-CoA thiolase deficiency and methylmalonyl-CoA mutase deficiency) and is diminished when proximal steps of the oxidative pathway are blocked as in branched-chain oxo acid decarboxylase deficiency (maple syrup urine disease) (PMID: 1016232). 2-Ethylhydracrylic acid has been identified in the human placenta (PMID: 32033212). Isolated excretion of 2-Ethylhydracrylic acid (2-methylbutyrylglycine; 2-MBG) is the hallmark of short/branched-chain acyl-CoA dehydrogenase deficiency (SBCADD), a defect in the proximal pathway of L-isoleucine oxidation (PMID 15615815)
3-Hydroxy-2-methyl-[S-(R,R)]-butanoic acid
3-Hydroxy-2-methyl-butanoic acid (HMBA)is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably b-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375) [HMDB] 3-Hydroxy-2-methyl-butanoic acid (HMBA) is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably b-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375).
Erythronilic acid
Erythronilic acid, also known as (2R,3S)-3-hydroxy-2-methylbutanoic acid (HMBA), is a normal urinary metabolite involved in isoleucine catabolism, beta-oxidation of fatty acids, and ketogenesis. HMDB is excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID: 10755375). 3-Hydroxy-2-methyl-butanoic acid (HMBA)is a normal urinary metabolite
Threonolactone
Threonolactone is an oxidation product of the autoxidation reaction of L-ascorbic acid. [HMDB] Threonolactone is an oxidation product of the autoxidation reaction of L-ascorbic acid.
4-Hydroxyisovaleric acid
4-hydroxyisovaleric acid is a metabolite of isovaleric acid that has been reported to be found in the urine of patients with isovaleric acidemia. It seems to be an intermediate product in the formation of methylsuccinic acid from isovaleric acid by omega-. oxidation. 4-hydroxyisovaleric acid is a metabolite of isovaleric acid that has been reported to be found in the urine of patients with isovaleric acidemia. It seems to be an intermediate product in the formation of methylsuccinic acid from isovaleric acid by omega-
S-Methyl butanethioate
S-Methyl butanethioate is a flavouring agent Flavouring agent
4-(Methylthio)-2-butanone
4-(Methylthio)-2-butanone is a flavouring ingredien Flavouring ingredient
4-Mercapto-2-pentanone
4-Mercapto-2-pentanone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
S-Propyl thioacetate
S-Propyl thioacetate is a flavouring ingredient. Flavouring ingredient
3-Mercapto-2-pentanone
3-Mercapto-2-pentanone is found in animal foods. 3-Mercapto-2-pentanone is a maillard product from reaction of cysteine and ribose. Aroma/flavour component of cookes meats. 3-Mercapto-2-pentanone is a flavouring agent Maillard product from reaction of cysteine and ribose. Aroma/flavour component of cookes meats. Flavouring agent. 3-Mercapto-2-pentanone is found in animal foods.
2-Mercapto-3-pentanone
2-Mercapto-3-pentanone is found in animal foods. Aroma/flavour component of cooked meats. 2-Mercapto-3-pentanone is a maillard product from reaction of cysteine and ribos Aroma/flavour component of cooked meats. Maillard product from reaction of cysteine and ribose. 2-Mercapto-3-pentanone is found in animal foods.
Tetrahydro-2-methylthiophen-3-ol
Tetrahydro-2-methylthiophen-3-ol is found in alcoholic beverages. Tetrahydro-2-methylthiophen-3-ol is found in wine. Tetrahydro-2-methylthiophen-3-ol is a compound responsible for "off" taste in some wines. Found in wine. Compd. responsible for "off" taste in some wines
Tetrahydro-2-methyl-3-furanthiol
Tetrahydro-2-methyl-3-furanthiol is a flavour enhancer for meat-like food Flavour enhancer for meat-like foods
4-(Methylthio)butanal
4-(Methylthio)butanal is a flavouring ingredient. Flavouring ingredient
Dihydro-4-mercapto-3(2H)-furanone
Dihydro-4-mercapto-3(2H)-furanone is a component of meat aroma model systems with green, meaty-hydrolysed vegetable aroma. Component of meat aroma model systems with green, meaty-hydrolysed vegetable aroma
5H-Cyclopentapyrazine
5H-Cyclopentapyrazine is found in pulses. 5H-Cyclopentapyrazine is a constituent of shoyu (soy sauce). Constituent of shoyu (soy sauce). 5H-Cyclopentapyrazine is found in pulses.
3-(Methylthio)butanal
3-(Methylthio)butanal is a flavouring ingredient. Flavouring ingredient
3-(Methylthio)-2-butanone
3-(Methylthio)-2-butanone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]"). It is used as a food additive
Diethyl carbonate
Diethyl carbonate belongs to the family of Dicarboxylic Acids and Derivatives. These are organic compounds containing exactly two carboxylic acid groups
Indazole
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N-carbamoylglycine
N-carbamoylglycine, also known as glycoluric acid or hydantoic acid, is a member of the class of compounds known as N-carbamoyl-alpha amino acids. N-carbamoyl-alpha amino acids are compounds containing an alpha amino acid which bears an carbamoyl group at its terminal nitrogen atom. N-carbamoylglycine is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). N-carbamoylglycine can be found in a number of food items such as persimmon, summer savory, tarragon, and coriander, which makes N-carbamoylglycine a potential biomarker for the consumption of these food products.
2-Ethylhydracrylic acid
A branched-chain saturated fatty acid that is butanoic acid substituted by a hydroxymethyl group at position 2. It is a metabolite derived from the isoleucine metabolism.
Methylmalonic acid
A dicarboxylic acid that is malonic acid in which one of the methylene hydrogens is substituted by a methyl group. Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer. Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer.
7-Azaindole
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1,1,3-Trimethyl-2-thiourea
CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3597; ORIGINAL_PRECURSOR_SCAN_NO 3595 CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3617; ORIGINAL_PRECURSOR_SCAN_NO 3615 CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3613; ORIGINAL_PRECURSOR_SCAN_NO 3609 CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3630; ORIGINAL_PRECURSOR_SCAN_NO 3627 CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3624; ORIGINAL_PRECURSOR_SCAN_NO 3619 CONFIDENCE standard compound; INTERNAL_ID 886; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3629; ORIGINAL_PRECURSOR_SCAN_NO 3626
2-Hydroxypentanoic acid
A 2-hydroxy monocarboxylic acid that is valeric (pentanoic) acid substituted at the alpha-position by a hydroxy group. Acquisition and generation of the data is financially supported in part by CREST/JST.
Succinate
Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].
Succinic acid
Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].
Succinis acid
Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].
Indazole
COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS CONFIDENCE standard compound; INTERNAL_ID 8312 CONFIDENCE standard compound; INTERNAL_ID 8153
2-Hydroxy-3-methylbutyric acid
A valine derivative that is valine in which the amino group has been replaced by a hydroxy group. 2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.
3-Hydroxyisovaleric acid
A 3-hydroxy monocarboxylic acid that is isovaleric acid substituted at position 3 by a hydroxy group. Used as indicator of biotin deficiency. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].
2-Hydroxy-2-methylbutyric acid
A branched-chain fatty acid that is 2-methylbutyric acid substituted at C-2 by a hydroxy group. 2-Hydroxy-2-methylbutanoic acid, an unusual metabolite, is associated with 2-hydroxyglutaric aciduria and maple syrup urine disease.
Methylmalonate
Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer. Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer.
b-Hydroxyisovalerate
3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].
FA 5:0;O
2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.
FA 4:1;O2
Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer. Methylmalonic acid (Methylmalonate) is an indicator of Vitamin B-12 deficiency in cancer.
Carbamimidothioic acid,N,N-dimethyl-, methyl ester
3-Nitropropanoate
The conjugate base of 3-nitropropanoic acid; major species at pH 7.3.
L-threoninate
An L-alpha-amino acid anion that is the conjugate base of L-threonine, arising from deprotonation of the carboxy group.
(2S,3S)-3-hydroxy-2-methylbutanoic acid
A 2-methyl-3-hydroxybutyric acid that has (2S,3S)-configuration.
Succinic acid-2,2,3,3-d4
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(4R)-4-hydroxypentanoic acid
An (omega-1)-hydroxy fatty acid that is valeric acid in which the 4-pro-R hydrogen is replaced by a hydroxy group.
3-aci-Nitropropanoate
A monocarboxylic acid anion resulting from the deprotonation of the carboxy group of 3-aci-nitropropanoic acid. D002491 - Central Nervous System Agents > D000697 - Central Nervous System Stimulants > D003292 - Convulsants D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents
4-Amino-3-hydroxybutanoate
The conjugate base of gamma-amino-beta-hydroxybutyric acid arising from deprotonation of the carboxy group.
Homoserinate
An alpha-amino-acid anion resulting from the removal of a proton from the carboxy group of homoserine.
BENZIMIDAZOLE
D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000871 - Anthelmintics
5-Hydroxyvaleric Acid
An omega-hydroxy fatty acid consisting of pentanoic acid carrying a hydroxy group at C-5.
N-carbamoylglycine
A member of the class of ureas obtained by formal condensation of the carboxy group of carbamic acid with the amino group of glycine.
aminomalonate(1-)
Conjugate base of aminomalonic acid arising from deprotonation of the two carboxy groups and protonation of the amino group; major species at pH 7.3.
(R)-2-hydroxy-3-methylbutyric acid
The R-enantiomer of 2-hydroxy-3-methylbutyric acid.
(R)-3-hydroxypentanoic acid
A 3-hydroxypentanoic acid in which the chiral centre at position 3 has R-configuration.
(S)-3-hydroxypentanoic acid
A 3-hydroxypentanoic acid in which the chiral centre at position 3 has S-configuration.
L-threonolactone
A butan-4-olide that is dihydrofuran-2-one substituted at C-3 and C-4 by hydroxy groups (the 3R,4S-diastereomer).
methylcarbamoylcarbamate
A carbamate ester obatined by the formal condensation of urea-1-carboxylic acid with methanol.
(S)-2-hydroxy-3-methylbutyric acid
The S-enantiomer of 2-hydroxy-3-methylbutyric acid. It is used as a chiral building block for peptide synthesis.
ethyl 2-hydroxypropanoate
The ethyl ester obtained of 2-hydroxypropanoic acid.
3-Hydroxy-2-methylbutanoic acid
A 3-hydroxy monocarboxylic acid that is butyric acid which is substituted by a methyl group and a hydroxy group at positions 2 and 3, respectively.
3-Hydroxypentanoic acid
A short-chain fatty acid that is valeric acid in which one of the methylene hydrogens at position 3 has been replaced by a hydroxy group.
Benzene,(isocyanomethyl)-
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