A positively charged amino acid with a guanidinium group (pKa ~12.5, always protonated in the body). Precursor to nitric oxide via nitric oxide synthase. Conditionally essential — required in the diet during growth, illness, and stress.
Also known as: arginine, 74-79-3, L-(+)-Arginine, (S)-2-Amino-5-guanidinopentanoic acid, L-Arg (+14 more)
H319Causes serious eye irritationSource: PubChem GHS Classification. Always consult the SDS for handling.