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C7880 Sigma-Aldrich

L-Cysteine hydrochloride monohydrate

reagent grade, ≥98% (TLC)



Biochem/physiol Actions

NMDA glutamatergic receptor antagonist.


1 kg in poly bottle

100, 500 g in poly bottle

5 kg in poly drum

500 mg in poly bottle


L-Cysteine hydrochloride monohydrate has been used in a protocol for the separation of dorsal root ganglion neurons (DRGs). It has also been used in a study to examine its effect as an inhibitor in preventing enzymatic browning in apples.

General description

L-Cysteine hydrochloride monohydrate (LCHCMH) is a water soluble salt of the non-essential amino acid, L-cysteine. It is widely employed in the medicine industry. The thermodynamic features of a solution of LCHCMH in water have been reported. It crystallizes in the orthorhombic system with space group P212121. Its nonlinear optical (NLO) property has been investigated in a single crystal grown by unidirectional Sankaranarayanan-Ramasamy (SR) technique.

Price and Availability

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Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


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Enzymatic Assay of Cathepsin B

This procedure applies to all products that have a specification for Cathepsin B activity, such as Sigma-Aldrich Product Numbers C0150 and C8571, determined by the liberation of 7-amino-4-methylcouma...
Keywords: Enzyme activity, Enzymology

Enzymatic Assay of Ficin (EC

The spectrophotometric stop rate detemination (A280, Light path = 1 cm) is based on the following reaction:

Phosphoglucomutase Assay

This procedure may be used for all Phosphoglucomutase products except for β-Phosphoglucomutase, Catalog Number P4109.
Keywords: Extinction coefficient

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