Chemicals and Drugs

Carbocysteine

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.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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.

Chemical Identity

Chemical Information

Molecular Formula
C5H9NO4S
Molecular Weight
179.20 g/mol
CAS Registry No.
638-23-3
IUPAC Name
(2R)-2-amino-3-(carboxymethylsulfanyl)propanoic acid
InChIKey
GBFLZEXEOZUWRN-VKHMYHEASA-N
SMILES
C([C@@H](C(=O)O)N)SCC(=O)O
MeSH Unique ID
D002233
Source
PubChem CID 193653

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

12 entry terms
  • 3-(Carboxymethylthio)alanine
  • Carbocysteine, L-Isomer
  • S-(Carboxymethyl)-L-cysteine
  • S-Carboxymethylcysteine
  • Carbocysteine, L Isomer
  • L-Isomer Carbocysteine
  • S Carboxymethylcysteine
  • Mucodine
  • Mucodyne
  • Mukodin
  • Rhinathiol
  • Thiodril

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

History Note

91(80); was see under CYSTEINE 1980-90; was CARBOXYMETHYLCYSTEINE see under CYSTEINE 1975-79

MeSH Record

Previous Indexing

  • Amino Acids, Dicarboxylic (1974)
  • Amino Acids, Sulfur (1974)

MeSH Hierarchy

Tree Numbers

  1. D02w.886w.030w.230w.310w
  2. D12.125w.119.270w
  3. D12.125w.166w.230w.310w

AMA Style

References

  1. National Library of Medicine. Carbocysteine. Medical Subject Headings (MeSH). 2026. Unique ID D002233. http://id.nlm.nih.gov/mesh/2026/D002233
  2. Carbocysteine. In: Wikipedia. https://en.wikipedia.org/wiki/Carbocisteine
  3. Carbocysteine. In: Wikidata. https://www.wikidata.org/wiki/Q423408
  4. Carbocysteine. In: PubChem Compound. CID 193653. https://pubchem.ncbi.nlm.nih.gov/compound/193653