Agent Name

Histidine

CAS Number

71-00-1

Formula

C6-H9-N3-O2

Major Category

Biological Agents

Synonyms

(L)-Histidine; (S)-2-Amino-3-(4-imidazolyl)propionsaeure; (S)-4-(2-Amino-2-carboxyethyl)imidazole; (S)-alpha-Amino-1H-imidazole-4-propanoic acid; 1H-Imidazole-4-alanine, (S)-; 1H-Imidazole-4-propanoic acid, alpha-amino-, (S)-; 4-(2-Amino-2-carboxyethyl)imidazole; Anti-rheuma; Glyoxaline-5-alanine; HIS; Histidina [INN-Spanish]; Histidinum [INN-Latin]; Istidina; L-Alanine, 3-(1H-imidazol-4-yl)-; L-Histidine; L-beta-(4-Imidazolyl)-alpha-alanin; L-beta-(4-Imidazolyl)alanin; S-Histidine; alpha-Amino-1H-imidazole-4-propionic acid, (S)-; alpha-Amino-4(or 5)-imidazolepropionic acid; Histidine, L-; [ChemIDplus] His; H; [Merck Index]

Category

Amino Acids and Derivatives

Description

Solid; [Merck Index] Powder; [Sigma-Aldrich MSDS]

Sources/Uses

An essential amino acid; [Merck Index] Used as a medicine, feed additive, dietary supplement, in biochemical research, infusion solutions, diagnostic aids, and as a starting material for peptide drugs; [HSDB] Used as a flavoring agent and nutritional supplement for foods; [FDA]

Comments

Safe when used as a flavoring agent in food; [JECFA] May cause irritation; [Sigma-Aldrich MSDS]

Exposure Assessment
Vapor Pressure

5.99E-9 mm Hg

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