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Substance Name: Cysteine hydrochloride [USP]
RN: 7048-04-6
UNII: ZT934N0X4W
InChIKey: QIJRTFXNRTXDIP-JIZZDEOASA-N

Classification Codes

  • Amino Acid
  • Drug / Therapeutic Agent

Molecular Formula

  • C3-H7-N-O2-S.Cl-H.H2-O

Molecular Weight

  • 175.635
 
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Names and Synonyms

Name of Substance

  • Cysteine hydrochloride
  • Cysteine hydrochloride [USP]

Synonyms

  • Cysteine HCl
  • Cysteine hydrochloride
  • Cysteine hydrochloride monohydrate, L-
  • EC 615-117-8
  • L-Cysteine monohydrate monochloride
  • NSC 755898
  • UNII-ZT934N0X4W

Systematic Names

  • (2R)-2-Amino-3-sulfanyl-propanoic acid hydrochloride monohydrate
  • L-Cysteine hydrochloride monohydrate

Registry Numbers

CAS Registry Number

  • 7048-04-6

FDA UNII

  • ZT934N0X4W

Related Registry Number

  • 52-90-4 (Parent)

System Generated Number

  • 0007048046

Molecular Formulas

Molecular Formula

  • C3-H7-N-O2-S.Cl-H.H2-O

Molecular Formula Fragments

  • C3-H7-N-O2-S
  • Cl-H
  • COMPONENT
  • H2-O

Structure Descriptors

InChI

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

InChIKey

QIJRTFXNRTXDIP-JIZZDEOASA-N

Smiles

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

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 subcutaneous 3564mg/kg (3564mg/kg)   Japanese Journal of Antibiotics. Vol. 41, Pg. 105, 1988.