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Alanine (symbol Ala or A), [4] or α-alanine, is an α-amino acid that is used in the biosynthesis of proteins. It contains an amine group and a carboxylic acid group, both attached to the central carbon atom which also carries a methyl group side chain. Consequently it is classified as a nonpolar, aliphatic α-amino acid.
Chemical formula: C 3 H 7 N O 2 Molar mass: 89.1 g·mol −1 Systematic name: (S)-2-aminopropanoic acid Abbreviations: A, Ala Synonyms: 2-aminopropanoic acid {α/2}-aminopropionic acid AIDS{-}071780 HSDB 1801 NSC 206315
Amino acids are formally named by the IUPAC-IUBMB Joint Commission on Biochemical Nomenclature in terms of the fictitious "neutral" structure shown in the illustration. For example, the systematic name of alanine is 2-aminopropanoic acid, based on the formula CH 3 −CH(NH 2)−COOH. The Commission justified this approach as follows: [7]
Aminopropionic acid (C3H7NO2, molar mass 89.093 g/mol) may refer to: 2-Aminopropionic acid, or alanine; 3-Aminopropionic acid, or β-alanine
β-Alanine (beta-alanine) is a naturally occurring beta amino acid, which is an amino acid in which the amino group is attached to the β-carbon (i.e. the carbon two carbon atoms away from the carboxylate group) instead of the more usual α-carbon for alanine (α-alanine). The IUPAC name for β-alanine is 3-aminopropanoic acid.
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Isopropylamine can be obtained by reaction of isopropyl alcohol with ammonia in presence of a catalyst: [3] (CH 3) 2 CHOH + NH 3 → (CH 3) 2 CHNH 2 + H 2 O. Isopropylamine is a building block for the preparation of many herbicides and pesticides including atrazine, bentazon, glyphosate, imazapyr, ametryne, desmetryn, prometryn, pramitol, dipropetryn, propazine, fenamiphos, and iprodione. [3]
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