M6500 Sigma

Cysteamine hydrochloride

≥98% (titration)

Synonym: β-Mercapto­ethylamine hydrochloride, 2-Mercapto­ethyl­amine hydrochloride, 2-Amino­ethane­thiol hydrochloride, Decarboxy­cysteine hydrochloride, Thio­ethanol­amine hydrochloride



25, 100 g in glass bottle


Cysteamine derived from cysteine degradation is the simplest stable aminothiol. Cysteamine is used in the biosynthesis of coenzyme A (CoA). Cysteamine may be useful in studies on oxidative stress and glycation (transglycating agent). Cysteamine is a substrate useful to study the specificity and kinetics of cysteamine (2-aminoethanethiol) dioxygenase(s) (ADO).

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≥98.0% (RT)

Cysteamine hydrochloride

≥97.0% (RT)

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