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You are here:Home » Biochemicals » Biochem-Amino Acids, Derivatives » L-Cysteine Hydrochloride Anhydrous

L-Cysteine Hydrochloride Anhydrous


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L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavors.
Catalog #C9005
Purity 98%
AppearanceWhite, crystalline powder
Specific Rotation (C=8, 1N HCl)+5.6 °to +8.9°
Loss on Drying 2.0%
Residue on Ignition 0.4%
Heavy Metals (Pb) 0.001%
pH1.5 to 2.0
Endotoxin 2Eu/mg
Storage and StabilityLyophilized powder may be stored at 4°C. Stable for 12 months at 4°C.
CAS Number52-89-1
Molecular FormulaC3H7NO2S•HCl
Molecular Weight157.62
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.
Alternate namesR)-2-Amino-3-mercaptopropanoic Acid Hydrochloride; (R)-Cysteine Hydrochloride; 2-Amino-3-mercaptopropionic Acid Hydrochloride; NSC 8746 Hydrochloride; Thioserine Hydrochloride; -Mercaptoalanine Hydrochloride

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