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L-Cysteine hydrochloride monohydrate

SIAL/30122 - tested according to Ph. Eur.

Synonym: Cysteini hydrochloridum monohydricum

CAS Number: 7048-04-6
Empirical Formula (Hill Notation): C3H7NO2S · HCl · H2O
Molecular Weight: 175.63
EC Number: 200-157-7
MDL Number: MFCD00065606
Linear Formula: HSCH2CH(NH2)COOH · HCl · H2O
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-30122-100G 100 g
$178.00
1/EA
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agency tested according to Ph. Eur.
  USP/NF
application(s) pharmaceutical (small molecule)
assay 98.5-101.0%
form solid
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
mp 176 °C
Quality Level 100 
SMILES string O.Cl.N[C@@H](CS)C(O)=O
solubility H2O: soluble 100 g/L at 25 °C
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.
Biochem/physiol Actions: NMDA glutamatergic receptor antagonist.
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26
RIDADR NONH for all modes of transport
WGK Germany WGK 1
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity 98.5-101.0%
mp 176 °C
UNSPSC 12352209

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