Agent Name

Cysteine hydrochloride

CAS Number

52-89-1

Formula

C3-H7-N-O2-S.Cl-H

Major Category

Biological Agents

Synonyms

Cysteine hydrochloride (anhydrous); (R)-Cysteine hydrochloride; 3-Mercaptoalanine hydrochloride; Cystein chloride; Cysteine HCl (anhydrous); Cysteine chlorhydrate; Cysteine monohydrochloride; Cysteine, L-, monohydrochloride; EK 2367; L-(+)-Cysteine hydrochloride; L-Cysteine hydrochloride; L-Cysteine monohydrochloride; WR 348; L-Cysteine, hydrochloride; Cysteine, L-, hydrochloride; L-2-Amino-3-mercaptopropanoic acid monohydrochloride; [ChemIDplus]

Category

Amino Acids and Derivatives

Description

Hygroscopic solid; [Merck Index] White powder with an irritating odor; Hygroscopic; [Alfa Aesar 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, flour treating agent, and leavening agent for foods; [FDA]

Comments

Causes other changes of the liver, kidney, and bladder and effects on lipids in 12-week oral studies of rats; [RTECS] A skin and strong eye irritant; [Alfa Aesar MSDS] See "Cysteine."

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