Mebendazole
Mebendazole (CAS 31431-39-7), with the molecular formula C16H13N3O3 and a molecular weight of 295.29 g/mol, is a benzimidazole derivative. This compound functions as an anthelmintic agent, primarily used in veterinary and human medicine to treat a variety of parasitic worm infections. Its mechanism involves inhibiting the formation of the parasite's microtubules, leading to its death. Mebendazole is recognised for its broad-spectrum activity against nematodes and cestodes.
- IUPAC
- 5-Benzoyl-2-benzimidazolecarbamic acid methyl ester,Mebendazol,Methyl N-(5-benzoyl-1H-benzimidazol-2-yl)carbamate
- Synonyms
- 5-Benzoyl-2-benzimidazolecarbamic acid methyl esterMebendazolMethyl N-(5-benzoyl-1H-benzimidazol-2-yl)carbamate

Anthelmintic Agent
Mebendazole is a widely used broad-spectrum anthelmintic medication. It is effective against a range of gastrointestinal parasites including roundworms, hookworms, whipworms, and pinworms.
Veterinary Medicine
In veterinary practice, Mebendazole is employed to treat parasitic infections in livestock and companion animals. It helps maintain animal health by eliminating common intestinal worm infestations.
Research and Development
This compound serves as a reference standard or research chemical in pharmaceutical and biological studies. Its known biological activity makes it valuable for investigating drug efficacy and mechanisms of action.
| Molecular weight | 295.29 |
|---|---|
| Empirical formula | C16H13N3O3 |
| Assay | ≥98% (NT/TLC) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 36 |
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 Mebendazole used for?
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Mebendazole is primarily used as an anthelmintic agent to treat parasitic worm infections in both humans and animals. It is effective against a variety of intestinal worms.
What is the CAS number and molecular formula for Mebendazole?
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The CAS number for Mebendazole is 31431-39-7, and its molecular formula is C16H13N3O3.
What grade and purity does Tech Serve Solutions supply for Mebendazole?
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Tech Serve Solutions supplies Mebendazole with an assay of ≥98% as determined by TLC. This product is intended for laboratory use and is not supplied as USP, BP, or EP grade.
What are the safety considerations when handling Mebendazole?
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Mebendazole is classified with the GHS07 symbol and a 'Warning' signal word, indicating it is harmful if swallowed (H302). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used during handling.
How is Mebendazole packed and shipped by TSS?
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Mebendazole is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions. Specific packaging details are available upon request.
How can I request a sample or quote for Mebendazole?
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To request a sample or a quote for Mebendazole, please contact our sales team through the website or direct email, providing your specific requirements.
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