Fenbendazole
Fenbendazole (CAS 43210-67-9), with the molecular formula C15H13N3O2S and a molecular weight of 299.35 g/mol, is a benzimidazole derivative. It is widely recognised for its antiparasitic properties, serving as a key component in veterinary medicine. Its chemical structure makes it a valuable building block in organic synthesis and research applications within the broader chemical industry.
- IUPAC
- Methyl 5-(phenylthio)-2-benzimidazolecarbamate
- Synonyms
- Methyl 5-(phenylthio)-2-benzimidazolecarbamate

Veterinary Antiparasitic Agent
Fenbendazole is primarily utilised as a broad-spectrum anthelmintic in veterinary medicine for the treatment of various gastrointestinal parasites in animals. Its efficacy targets a range of nematodes and some cestodes.
Research and Development
As a heterocyclic building block, Fenbendazole is employed in chemical synthesis for the development of novel compounds. Researchers utilise it in laboratory settings to explore new chemical entities and reactions.
Chemical Synthesis Intermediate
The compound serves as an intermediate in the synthesis of more complex organic molecules. Its defined chemical structure (C15H13N3O2S) makes it suitable for targeted chemical modifications.
| Molecular weight | 299.35 |
|---|---|
| Empirical formula | C15H13N3O2S |
| Assay | ≥98% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Fenbendazole used for?
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Fenbendazole is primarily used as an antiparasitic agent in veterinary medicine and as a building block in chemical synthesis for research and development.
What is the CAS number and molecular formula for Fenbendazole?
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The CAS number for Fenbendazole is 43210-67-9, and its molecular formula is C15H13N3O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fenbendazole with a minimum purity of 98%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling Fenbendazole?
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When handling Fenbendazole, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. The German Water Hazard Class (WGK) is 2.
How is Fenbendazole packed and shipped?
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Fenbendazole is carefully packed to ensure its integrity during transit and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for Fenbendazole?
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To request a sample or a quote for Fenbendazole, please contact our sales department through the website or by phone.
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