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30122

L-Cysteine hydrochloride monohydrate

tested according to Ph. Eur.

Synonym(s):

Cysteini hydrochloridum monohydricum

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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:
12352209
PubChem Substance ID:
329753438
eCl@ss:
32160406
EC Number:
200-157-7
Beilstein/REAXYS Number:
5158059
MDL number:
MFCD00065606
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Quality Segment

agency

USP/NF, tested according to Ph. Eur.

assay

98.5-101.0%

form

solid

mp

176 °C

solubility

H2O: soluble 100 g/L at 25 °C

application(s)

pharmaceutical (small molecule)

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

Application

L-Cysteine hydrochloride monohydrate was used in the synthesis of polycarbophil-cysteine conjugate.

Biochem/physiol Actions

Cysteine is a non-essential, thiol-containing amino acid that has protective effects in normal tissues. It is converted to glutathione that decreases the effects of chemotherapeutic and radiation agents. This might restrict the effect of therapeutic agents used for cancer treatment.
NMDA glutamatergic receptor antagonist.

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Storage Class

11 - Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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