Arginine
C₆H₁₄N₄O₂·174.204 g/mol·Amino Acids·CID 6322
Amino AcidSignaling Molecule
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.
Molecular Structure
GHS Hazard Classification
Warning
Hazards
H319Causes serious eye irritation
Source: PubChem GHS Classification. Always consult the SDS for handling.