d( ) 2 aminobutyric acid

D(-)-2-Aminobutyric acid is a substrate of D-amino acid oxidase.

2-Deoxy-D-glucose (2-DG) is an analog of glucose, an inhibitor of glycolysis. 2-Deoxy-D-glucose has antiviral activity, as well as inhibitory cell proliferation and apoptosis-inducing activity.

2-Hydroxy-6-methoxybenzoic acid (6-Methoxysalicylic acid) may be employed as internal standard for the determination of acetylsalicylic acid (aspirin, ASA) and its major metabolite, salicylic acid (SA),and exhibits significant analgesic effects

D-Glucaric acid potassium (D-Saccharic acid potassium salt) is a compound formed from oxidizing sugars, which can be used to test for the presence of hepatic enzyme induction. Studies indicate that D-glucuronolactone dehydrogenase oxidizes D-Saccharic acid potassium salt into D-glucaro-l,4;6,3-dilactone. Alternate studies suggest that D-Saccharic acid potassium salt forms a complex with Cu(II) and H2O2to decolorize azo, acridine, triphenyl methane, anthraquinone and thiazine-based dyes.

2-Hydroxystearic acid is a hydroxy fatty acid found in humans and U. armoricana. It reduces the growth of Ehrlich ascites tumor (EAT) cells in vitro when used at a concentration of 100 μM.

Pyrrole-2-carboxylic acid (Minaline) was first identified as a degradation product of sialic acids, then as a derivative of the oxidation of the D-hydroxyproline isomers by mammalian D-amino acid oxidase. The latter relationship results from the lability of the direct oxidation product, A'-pyrroline-4-hydroxy-2-carboxylic acid, which loses water spontaneously to form the pyrrole. A similar reaction is catalyzed by the more specific allohydroxy-D-proline oxidase of Pseudomonas. In whole animal observations, pyrrole-2-carboxylate (PCA) ' was identified in rat or human urine after administration of the D-isomers of hydroxyproline, a finding ascribable to the action of D-amino acid oxidase. Urinary excretion of N-(pyrrole-2-carboxyl) glycine has been reported in a 5-year-old affected with type II hyperprolinemia; The child has mild developmental delay, recurrent seizures of the grand mal type and EEG alterations.

2-Hydroxyisobutyric acid (α-Hydroxyisobutyric acid) is a metabolite of methyl tert-butyl ether (MTBE). MTBE may be obtained through environmental exposure. MTBE is rapidly eliminated from the body, mainly through expired air as the unchanged compound. MTBE is to some extent metabolised to t-butyl alcohol (TBA) and formaldehyde and oxidised to 2-methyl-1,2-propanediol and a-hydroxy isobuturic acid. 2-Hydroxyisobutyric acid has been used as an arial bactericide.

D-Pantothenic acid (vitamin B5) is a water-soluble vitamin ubiquitously found in plants and animal tissues with an antioxidant property. D-Pantothenic acid is a component of coenzyme A (CoA) and a part of the vitamin B2 complex. D-Pantothenic acid is a growth factor and is essential for various metabolic functions, including the metabolism of carbohydrates, proteins, and fatty acids. This vitamin is also involved in the synthesis of cholesterol, lipids, neurotransmitters, steroid hormones, and hemoglobin.

1-Hydroxy-2-naphthoic acid (ALPHA-HYDROXYNAPHTHOIC ACID) is a Metabolite from phenanthrene degradation.

D-(-)-Tartaric acid (D-Tartaric acid; (S, S)-tartarate; D-threaric acid) is mainly located in the cytoplasm. D-(-)-Tartaric acid can be converted into (2S,3S)-cis-fertaric acid and (2S,3S)-trans-fertaric acid. Outside the human body, it can be found in vinegar. This makes it a potential biomarker for the consumption of this food.

D-(+)-Phenyllactic acid (D-3-Phenyllactic acid), an antibacterial compound produced by Geotrichum candidum, effectively inhibits various Gram-positive and Gram-negative bacteria originating from humans and food products[1].

2-Hydroxyoctanoic acid is a medium-chain acyl-coenzyme A synthetase inhibitor (Ki:500 μM). 3-Hydroxymandelic acid is a protein hydrolysis product of larger proteins.

2-METHYLVALERIC ACID is a natural product.

2-Hydroxy-4-methoxybenzoic acid (2-Hydroxy-p-anisic Acid) is a predicted metabolite generated by BioTransformer1 that is produced by the metabolism of 3-(2-hydroxy-4-methoxyphenyl)propanoic acid. It is generated by unspecified-gutmicro enzyme via a beta-oxidation-of-carbxoylic-acid reaction. This beta-oxidation-of-carbxoylic-acid occurs in human gut microbiota.

1. 2-Methoxycinnamic acid (o-Methoxycinnamic acid) can enhance inhibition of tyrosinase activity.

Anthraquinone-2-carboxylic acid acts as a potent anti-inflammatory and antinociceptive component in vivo, thus contributing to the immune regulatory role of fruits and herbs.

2-Furoic acid (Furan-2-carboxylic acid) reduces serum cholesterol and triglyceride levels and exhibits anti-lipidemic effects.

(E)-Oct-2-enoic acid (2-Octenoate) is an organic acid produced by hepatic microsomal oxidation of aliphatic aldehydes and is a metabolite naturally present in urine and plasma.

2-(4-Methoxyphenyl)acetic acid, a plasma metabolite, is highly sensitive and specific and can be used as a bioindicator to differentiate non-small cell carcinoma patients from healthy controls.

2-Hydroxycinnamic acid is a natural product isolated from Angraecum fragrans, has photooxidant activity.

2-Phenylbutanoic acid (2-Phenylbutyric acid) is used as an industrial intermediate.

2-Methylhexanoic acid is a flavouring ingredient.

2-Hydroxyhexanoic acid (2-Hydroxycaproic acid) is a branched-chain alpha-keto acid that has been reported in normal human blood and in normal amniotic fluid. It has been found that 2-Hydroxyhexanoic acid is the most significant metabolite found in the CSF of patients infected with Nocardia.

2-Hydroxy-2-methylbutyric acid is an unusual metabolite found in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease.

D-Glucuronic acid lactone (Dicurone) is a naturally occurring chemical that is an important structural component of nearly all connective tissues. Glucuronolactone is also found in many plant gums.

D-Pantothenic acid hemicalcium salt (Calcium pantothenate), a kind of water soluble vitamin, can reduce the patulin content of the apple juice.

D-(-)-Quinic acid (Kinic acid) is a cellular metal ion chelator, capable of promoting reactions with metal M(II,III) ions under pH-specific conditions. It may possess potent inhibition against alpha-mannosidase and alpha-fucosidase.

L-Azetidine-2-carboxylic acid ((2S)-azetidine-2-carboxylic acid) is a toxic proline analogue produced by members of the Liliaceae and Agavaciae families.

D-Glucuronic acid sodium salt monohydrate (Sodium D-glucuronate) is a carboxylic acid that is highly soluble in water. In humans, glucuronic acid often binds to toxic substances to facilitate elimination and to hormones to aid in their transport.

trans-2-Undecenoic acid ((E)-Undec-2-enoic acid) ((E)-2-Undecenoic acid) is an α,β-unsaturated carboxylic acid characterized by acid dimers.

(R)-5-Oxopyrrolidine-2-carboxylic acid (D-Pyroglutamic acid) is a cyclic derivative of glutamic acid, physiologically present in mammalian tissues. It releases GABA from the cerebral cortex and exhibits anti-anxiety effects in a simple approach-avoidance conflict situation in rats. In clinical pharmacology experiments, it significantly shortens the plasma half-life of ethanol during acute intoxication.

D-Glutamic acid ((R)-Glutamic acid), the enantiomer of L-glutamic acid, is widely used in medicine and food.

(Z)-4-Amino-4-oxobut-2-enoic acid (Maleamic acid) is a valuable compound for research applications.

D-Pipecolinic acid ((R)-Piperidine-2-carboxylic acid) is a normal human metabolite found in human biological fluids.

2-Deoxy-2-sulfoamino-D-glucose sodium (GlcN-2S) can potentially influence arthritis.

2-Methyl-4-pentenoic Acid (2-Methylpent-4-enoic acid) is a branched-chain fatty acid.

4-Methyl-2-oxopentanoic acid is an abnormal metabolite, a neurotoxin and a metabolic toxin.

(E)-2-Methyl-2-pentenoic acid, characterized by its sweet berry-like aroma and flavor, is widely utilized in food flavoring.

(R)-pyrrolidine-2-carboxylic acid (D-Proline) is an isomer of the naturally occurring amino acid L-Proline. D-amino acids, including D-Proline, are found in relatively high abundance in human plasma and saliva, potentially originating from bacterial sources or endogenous production via amino acid racemase activity.

(E)-2-Butenoic acid (Crotonic acid) is fatty acid formed by the action of fatty acid synthases from acetyl-CoA and malonyl-CoA precursors. Crotonic acid is involved in the fatty acid biosynthesis. Crotonic acid is also found in water extracts from carrot seeds (Daucus carota L.).

γ-Aminobutyric acid (4-Aminobutyric acid) is the predominant inhibitory neurotransmitter in the central nervous system.

2-Hydroxyphenylacetic acid (Ortho-Hydroxyphenylacetic acid) can be found in a number of food items such as natal plum, lemon verbena, half-highbush blueberry, and parsley, which makes 2-Hydroxyphenylacetic acid a potential biomarker for the consumption of these food products. 2-Hydroxyphenylacetic acid (Ortho-Hydroxyphenylacetic acid) can be found primarily in blood, feces, and urine.

2-Methylheptanoic Acid is a flavouring ingredient.

L-Ascorbic acid 2-phosphate trisodium (Sodium ascorbyl phosphate) is utilized in biocatalytic dephosphorylation for electric power generation and electrochemical detection assays.

2-Aminobenzenesulfonic acid (2-Sulfoaniline) is a useful research chemical.

2-Ketoglutaric acid Sodium (AKG) is a key molecule in the TCA cycle. It can be produced from glutamate by oxidative deamination via glutamate dehydrogenase and as a product of pyridoxal phosphate-dependent transamination reactions (mediated by branched-chain amino acid transaminases) in which glutamate is a common amino donor.

Quinaldic acid is an endogenous metabolite.Quinaldic acid is a metal chelator.

Phthalic acid mono-2-ethylhexyl ester (Phthalic Acid Monooctyl Ester) is a major bioactive metabolite of diethylhexyl phthalate (DEHP), which inhibits the 17,20 lyase activity of CYP17. The Cyp17a1 gene is specifically targeted by MEHP, explaining the MEHP-induced suppression of steroidogenesis observed.