Acetylcysteine

CAS 616-91-1 4 FDA-DMF suppliersSmall Molecule

Overview

Acetylcysteine is a small molecule active pharmaceutical ingredient (ChEMBL CHEMBL600).

API suppliers (1)

Suppliers of Acetylcysteine backed by a verifiable FDA Type II Drug Master File. Source: FDA quarterly DMF list.

  • MOEHS IBERICA SLSpain1 active DMF

Patent & exclusivity (US)

Per the FDA Orange Book (20 approved US products), the latest listed US patent on Acetylcysteine expires 5 Apr 2032 and exclusivity 26 Nov 2027. Generic API sourcing typically opens up once these lapse.

Chemical identity

IUPAC name
(2R)-2-acetamido-3-sulfanylpropanoic acid
Canonical SMILES
CC(=O)N[C@@H](CS)C(=O)O
InChIKey
PWKSKIMOESPYIA-BYPYZUCNSA-N

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