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1161509

USP

L-Cysteine hydrochloride

Name: <SC>L</SC>-Cysteine hydrochloride
Brand: USP

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

L-Cysteine hydrochloride monohydrate

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About This Item

Linear Formula:

HSCH₂CH(NH₂)COOH · HCl · H₂O

CAS Number:

7048-04-6

Molecular Weight:

175.63

UNSPSC Code:

41116107

NACRES:

NA.24

PubChem Substance ID:

329749498

MDL number:

MFCD00065606

Beilstein/REAXYS Number:

5158059

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Properties

grade

pharmaceutical primary standard

API family

cysteine

form

powder

manufacturer/tradename

USP

solubility

water: 100 g/L at 25 °C

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O.Cl.N[C@@H](CS)C(O)=O

InChI

1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1

InChI key

QIJRTFXNRTXDIP-JIZZDEOASA-N

Description

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

L-Cysteine hydrochloride USP reference standard intended for use in specified quality tests and assays.

Also used to prepare standard stock solution during the assay and impurity analysis of Cysteine Hydrochloride and Cysteine Hydrochloride Injection.

Biochem/physiol Actions

NMDA glutamatergic receptor antagonist.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.

Other Notes

USP issued SDS can be found here.

Sales restrictions may apply.

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

11 - Combustible Solids

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Cysteine Hydrochloride Injection

United States Pharmacopeia and National Formulary

United States Pharmacopeia, 1222-1222 (2018)

Cysteine Hydrochloride