Arginine (abbreviated as Arg or R) encoded by the codons CGU, CGC, CGA, CGG, AGA, and AGG is an a-amino acid that is used in the biosynthesis of proteins. It contains an alpha-amino group (which is in the protonated -+NH3 form under biological conditions), an alpha-carboxylic acid group (which is in the deprotonated -COO- form under biological conditions), and a side chain of a 3-carbon aliphatic straight chain capped by a complex guanidinium, classifying it as a charged (at physiological pH), aliphatic amino acid. Arginine is classified as a semiessential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. Synonyms: 2-Amino-5-guanidinopentanoic acid, L-(+)-Arginine, L-Arg CAS No: 74-79-3 Molecular Formula: C6H14N4O2 Molecular Weight: 174.20 Purity: 98% Appearance: White, crystalline powder Identity: Conforms to structure Loss on Drying: 1% Residue of Ignition: 0.2% Heavy Metals (Pb): 0.001% Storage: 4C
Molecular Weight:
174.2
CAS Number:
[74-79-3]
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