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Merck
CN

30130

Sigma-Aldrich

L-Cysteine hydrochloride monohydrate

≥99.0% (RT)

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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
EC Number:
200-157-7
MDL number:
MFCD00065606
UNSPSC Code:
12352209
PubChem Substance ID:
329753440

Key Documents

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Assay

≥99.0% (RT)

optical activity

[α]20/D +5.6±0.3°, c = 5% in 5 M HCl

impurities

≤1% foreign amino acids

ign. residue

≤0.1% (as SO4)

anion traces

sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤500 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

application(s)

peptide synthesis

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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Biochem/physiol Actions

NMDA glutamatergic receptor antagonist.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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