Agent Name

Cysteine

CAS Number

52-90-4

Formula

C3-H7-N-O2-S

Major Category

Biological Agents

Synonyms

(R)-2-Amino-3-mercaptopropanoic acid; (R)-2-Amino-3-mercaptopropionic acid; (R)-Cysteine; 2-Amino-3-mercaptopropanoic acid, (R)-; Cisteina [Spanish]; Cisteinum [Latin]; Cystein; Cysteinum [INN-Latin]; Half cystine; Half-cystine; L-(+)-Cysteine; L-Alanine, 3-mercapto-; Propanoic acid, 2-amino-3-mercapto-, (R)-; Thioserine; alpha-Amino-beta-mercaptopropanoic acid, L-; alpha-Amino-beta-mercaptopropionic acid, L-; alpha-Amino-beta-thiolpropionic acid, L-; beta-Mercaptoalanine; beta-Mercaptoalanine, L-; L-Cysteine; Cysteine, L-; L-2-Amino-3-mercaptopropanoic acid; [ChemIDplus] Cys; C; [Merck Index]

Category

Amino Acids and Derivatives

Description

Colorless or white solid; [HSDB] Colorless crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Cysteine is a non-essential amino acid that has been used as a dough conditioner and veterinary detoxicant; [Merck Index] Used as a flavoring agent, dough strengthener, nutritional supplement, and flour treating agent for foods; [FDA] Used for biochemical and nutritional research and as a medication; [HSDB]

Comments

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

Exposure Assessment
Vapor Pressure

2.07E-6 mm Hg

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap
Other Information

No other related information on this agent was found.