L-Arginine

Arginine was first isolated from a lupine seedling extract in 1886 by the Swiss chemist Ernst Schulze. It was identified as a component of casein in 1895; later it was found to be widely distributed in foods and feed.

IUPAC Name: (2S)-2-Amino-5-(diaminomethylideneamino)pentanoic acid
Symbol: Arg or R
Molecular Weight: 174.20096 g/mol
Molecular Formula: C6H14N4O2
Canonical SMILES: C(CC(C(=O)O)N)CN=C(N)N
Isomeric SMILES: C(C[C@@H](C(=O)O)N)CN=C(N)N
InChIKey Identifier: ODKSFYDXXFIFQN-SMLZDNMQDI
CAS Number: 74-79-3
MDL Number: MFCD00002635
Melting point: 223 °C
Solubility in water: 148,7 g/L (20 °C)
2D Molfile: Get the molfile
3D PDB file: Get the PDB file
Other names: (S)-2-Amino-5-guanidinopentanoic acid; L-(+)-Arginine; S-(+)-Arginine

Load 3D Structure of Arginine

L-Arginine plays an important role in cell division, the healing of wounds, removing ammonia from the body, immune function, and the release of hormones. Arginine is a precursor of nitric oxide, which causes blood vessel relaxation.

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