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Substance Name: Carbocysteine, DL-
RN: 25390-17-4
UNII: 4252LRM78Q
InChIKey: GBFLZEXEOZUWRN-UHFFFAOYSA-N

Note

  • A compound formed when iodoacetic acid reacts with sulfhydryl groups in proteins. It has been used as an anti-infective nasal spray with mucolytic and expectorant action.

Molecular Formula

  • C5-H9-N-O4-S

Molecular Weight

  • 179.1951
 

Classification Codes

  • Anti-Infective Agents
  • Anti-Infective Agents, Local
  • Expectorants
  • Respiratory System Agents
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Names and Synonyms

Name of Substance

  • Carbocysteine, DL-

MeSH Heading

  • Carbocysteine

Synonyms

  • (RS)-Cysteine, S-(carboxymethyl)-
  • 5-Amino-3-thiadihexanoic acid
  • Carbocysteine, DL
  • DL-3-(Carboxymethylthio)alanine
  • DL-cysteine, S-(carboxymethyl)-
  • EINECS 246-934-4
  • NSC 68427
  • S-(Carboxymethyl)-(RS)-cysteine
  • S-(Carboxymethyl)-DL-cysteine
  • UNII-4252LRM78Q

Systematic Names

  • Cysteine, S-(carboxymethyl)-
  • S-(Carboxymethyl)-DL-cysteine

Registry Numbers

CAS Registry Number

  • 25390-17-4

FDA UNII

  • 4252LRM78Q

Other Registry Number

  • 2387-59-9

System Generated Number

  • 0025390174

Structure Descriptors

InChI

1S/C5H9NO4S/c6-3(5(9)10)1-11-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)

InChIKey

GBFLZEXEOZUWRN-UHFFFAOYSA-N

Smiles

C(=O)(C(N)CSCC(=O)O)O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 2980mg/kg (2980mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 12, Pg. 668, 1981.
mouse LD50 oral 11500mg/kg (11500mg/kg)   Yaoxue Tongbao. Bulletin of Pharmacology. Vol. 22, Pg. 241, 1987.
mouse LD50 subcutaneous 9gm/kg (9000mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 12, Pg. 668, 1981.
rat LD50 intraperitoneal 7800mg/kg (7800mg/kg)   Oyo Yakuri. Pharmacometrics. Vol. 14, Pg. 567, 1977.
rat LD50 oral > 15gm/kg (15000mg/kg)   Oyo Yakuri. Pharmacometrics. Vol. 14, Pg. 567, 1977.
rat LD50 subcutaneous 10300mg/kg (10300mg/kg)   Oyo Yakuri. Pharmacometrics. Vol. 14, Pg. 567, 1977.