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Product Description
Fenbendazole is a benzimidazole veterinary active pharmaceutical ingredient (API) widely used in animal health formulations for livestock and companion animal applications. It is supplied as a high-purity powder for veterinary pharmaceutical manufacturers producing oral suspensions, granules, feed additives, and other animal health products.
Known for its broad veterinary application profile and established pharmaceutical properties, fenbendazole is commonly evaluated by manufacturers through assay accuracy, impurity control, particle characteristics, and formulation compatibility to ensure consistent product quality.
Fenbendazole is a benzimidazole carbamate compound used as a veterinary anthelmintic active ingredient. It is commonly incorporated into animal health formulations designed for livestock and companion animals.
The compound has low water solubility, making physical characteristics such as particle size distribution, dispersion performance, and formulation design important considerations for veterinary manufacturers. Procurement teams typically assess fenbendazole API based on purity, analytical data, documentation, and suitability for the intended dosage form.
| Item | Specification |
|---|---|
| Product Name | Fenbendazole Veterinary API |
| Category | Veterinary APIs / Animal Health Ingredients |
| CAS Number | 43210-67-9 |
| Molecular Formula | C15H13N3O2S |
| Molecular Weight | 299.34 g/mol |
| Appearance | White or almost white crystalline powder |
| Assay Grade | Common veterinary pharmaceutical grades with high purity; customized specifications available according to application requirements |
| Identification Method | HPLC, UV and standard pharmaceutical analytical methods |
| Assay Testing | HPLC assay and related substance analysis |
| Solubility | Practically insoluble in water; formulation design considers dispersion and delivery performance |
| Shelf Life | Typically 24 months under recommended storage conditions |
| Storage | Store in a cool, dry place, protected from moisture, heat, and direct sunlight |
| Packaging | Common packaging includes 1kg or 5kg aluminum foil bags and 25kg fiber drums; customized packaging available |
| Applications | Veterinary pharmaceutical formulations, livestock health products, and animal health manufacturing |
Fenbendazole is used as an active ingredient in veterinary products for livestock and companion animal applications. Typical product categories include:
Fenbendazole has limited water solubility, so veterinary manufacturers should evaluate more than chemical purity when selecting an API supplier. Physical characteristics and processing suitability can influence mixing uniformity, dosage consistency, and formulation performance.
| Selection Factor | Why It Matters | Procurement Focus |
|---|---|---|
| Assay and Purity | Ensures accurate active ingredient content in finished veterinary products | Review HPLC assay results, impurity profile, and batch documentation |
| Particle Characteristics | Influences dispersion and processing behavior in low-solubility formulations | Select suitable physical specifications for the intended dosage form |
| Formulation Compatibility | Different products may require different delivery systems | Evaluate suitability for suspensions, powders, granules, or premix applications |
Fenbendazole can be used in customized animal health product development projects. Support may include specification customization, technical documentation, formulation cooperation, and flexible packaging solutions according to product requirements.
Typical quality evaluation for fenbendazole veterinary API includes:
Fenbendazole is commonly packaged in sealed aluminum foil bags or fiber drums suitable for veterinary ingredient transportation and storage. Customized packaging formats can be arranged according to bulk handling and customer requirements.
Fenbendazole veterinary API is a widely used benzimidazole ingredient for animal health formulations. Its established veterinary application profile and need for careful physical specification control make quality consistency, analytical verification, and formulation compatibility important factors for manufacturers.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for fenbendazole veterinary API.

Packaging & Delivery
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