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L-Cysteine hydrochloride

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
Beilstein:
5158059
MDL number:
MFCD00065606
UNSPSC Code:
41116107
PubChem Substance ID:
329749498
NACRES:
NA.24

grade

pharmaceutical primary standard

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

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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.

related product

Product No.
Description
Pricing

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cysteine Hydrochloride Injection
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 1222-1222 (2018)
Cysteine Hydrochloride
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 42(1), 1221-1221 (2023)

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