Agent Name

Tryptophan

CAS Number

73-22-3

Formula

C11-H12-N2-O2

Major Category

Biological Agents

Synonyms

(L)-Tryptophan; (S)-Tryptophan; (S)-alpha-Amino-1H-indole-3-propanoic acid; (S)-alpha-Aminoindole-3-propionic acid; 1-beta-3-Indolylalanine; 1H-Indole-3-alanine; 1H-Indole-3-alanine (VAN); 1H-Indole-3-alanine, (S)-; 1H-Indole-3-propanoic acid, alpha-amino-, (S)-; 1beta-3-Indolylalanine; 2-Amino-3-indolylpropanoic acid; 3-Indol-3-ylalanine; Alanine, 3-indol-3-yl-; Ardeytropin; EH 121; Indole-3-alanine; Indole-3-propionic acid, alpha-amino-; Kalma; L-Alanine, 3-(1H-indol-3-yl)-; L-Trp; L-Tryptofan; L-Tryptophan; L-Tryptophane; L-alpha-Aminoindole-3-propionic acid; L-beta-3-Indolylalanine; Optimax; Pacitron; Propionic acid, 2-amino-3-indol-3-yl-; TRP; Triptofano [Spanish]; Trofan; Tryptacin; Tryptophane [French]; Tryptophanum [Latin]; alpha'-Amino-3-indolepropionic acid; alpha-Amino-3-indolepropionic acid, L-; Tryptophan, L-; [ChemIDplus]

Category

Amino Acids and Derivatives

Description

Solid; [Merck Index] White to slightly yellowish-white odorless solid; [HSDB] White powder; [Sigma-Aldrich MSDS]

Sources/Uses

An essential amino acid; Used in biochemical research; [Merck Index] Used as a nutritional supplement for foods; [FDA] Used as a dietary supplement, for research, cereal enrichment, and as a medication; [HSDB] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Teratogenic effects observed in experimental animals at high doses; [ToxPlanet: Shepard's Catalog of Teratogenic Agents] No evidence of carcinogenicity in rats or mice; [NTP] May cause irritation; The FDA and CDC have established a possible link between L-tryptophan and eosinophilia-myalgia syndrome; [Sigma-Aldrich MSDS]

Exposure Assessment
Vapor Pressure

2.12E-9 mm Hg

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