Triclabendazole

Overview

Triclabendazole is a small molecule active pharmaceutical ingredient (ChEMBL CHEMBL1086440).

API suppliers (2)

Suppliers of Triclabendazole evidenced by a US FDA Type II Drug Master File or an EU Certificate of Suitability (CEP). Sources: FDA DMF list, EDQM certification database.

• ALIVIRA ANIMAL HEALTH LTD (A GROUP CO OF SEQUENT SCIENTIFIC LTD)India1 active DMF
• AZICO BIOPHORE INDIA PVT LTDIndia1 active DMF

Patent & exclusivity (US)

Per the FDA Orange Book (1 approved US product), the latest listed US patent on Triclabendazole expires — and exclusivity 13 Feb 2026. Generic API sourcing typically opens up once these lapse.

Chemical identity

IUPAC name

6-chloro-5-(2,3-dichlorophenoxy)-2-methylsulfanyl-1H-benzimidazole

Canonical SMILES

CSC1=NC2=CC(=C(C=C2N1)Cl)OC3=C(C(=CC=C3)Cl)Cl

InChIKey

NQPDXQQQCQDHHW-UHFFFAOYSA-N