• Chemical Name: Oxfendazole
  • CAS No.: 53716-50-0
  • MF: C15H13N3O3S
  • MW: 315.35
  • Purity: ≥98% or according to customer requested
  • Color: Crystals from chloroform-methanol
  • Product Categories: Pharmaceutical raw materials;APIs;Antiparasitic drugs;Anthelmintics
  • Test method: HPLC


What is Oxfendazole?

Oxfendazole is a member of the class of benzimidazoles that is fenbendazole in which the sulfur has been oxidised to the corresponding sulfoxide. It has a role as an antinematodal drug. It is a sulfoxide, a member of benzimidazoles and a carbamate ester. It derives from a fenbendazole. Benzimidazole antihelminthic protects livestock from roundworm. strongyles, and pinworn.

Basic information     

Product Name: Oxfendazole
Synonyms: Oxfendazol; Oxfendazolum; Oxfendazole USP
CAS: 53716-50-0
MF: C15H13N3O3S
MW: 315.35
EINECS: 258-714-5
Product Categories: Pharmaceutical raw materials;APIs;Antiparasitic drugs;Anthelmintics
Chemical Structure


Chemical Properties    

Melting point 298-300℃
density 1.3229 (rough estimate)
refractive index 1.6740 (estimate)
storage temp. Sealed in dry,Room Temperature
form neat
pka 10.27±0.10(Predicted)
color Crystals from chloroform-methanol
Oxfendazole Uses

a. Oxfendazole, the sulfoxide form of benthiamidazole, is a benzimidazole anthelmintic. It can destroy the microtubule structure of the epithelial cells of gastrointestinal worms and inhibit the worms from taking up glucose from the intestinal tract.

b. Oxfendazole is used to treat and control adults and larvae of the gastrointestinal tract. It has a good effect on the treatment of roundworms and lung worms in pigs, cattle and sheep, including Ostertagia and Haemonchus. , Trichostrongylus, Nematodirus, Cooperia, Capillaria, Oesophagostomum, Chabertia, Trichuris, and Dictyocaulus…etc.

Technical Support & Resources

Information provided in the product description is from published literature. Due to the nature of scientific experimentation, your results (e.g., selectivity and effective concentrations) or specific application for this product may differ. If you have questions about how this product fits your application, please contact our technical support staff.

MSDS: MSDS available.

COA: COA can be available if you send us inquiry.

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