| Product Name | Oxfendazole |
| Synonym | Fenbendazole Sulfoxide, OFDZ, RS‑8858 |
| CAS No. | 53716‑50‑0 |
| Appearance | White to off‑white crystalline powder |
| Molecular Formula | C15H13N3O3S |
| Molecular Weight | 315.35 g/mol |
| HS Code | 29420090 |
| Purity | ≥99% HPLC |
| Solubility | Practically insoluble in water; slightly soluble in methanol, acetone, chloroform, ether; soluble in DMSO / DMF |
| Stability | | Stable under normal storage; avoid strong oxidizing agents, high temperature & direct sunlight |
| Package | Cold‑pack / ice‑pack transportation, light‑proof required |
| Storage | Sealed, cool and dry place, ‑20 °C recommended for long‑term storage |
| Shelf-Life | 24Months |
Products Description
What is Oxfendazole API?
Oxfendazole API (CAS 53716‑50‑0), also known as fenbendazole sulfoxide, is a broad‑spectrum benzimidazole‑class veterinary active pharmaceutical ingredient. It is the sulfoxide metabolite of fenbendazole, widely applied as anthelmintic raw material for livestock and companion animal formulations. Oxfendazole interferes with helminth microtubule synthesis, inhibiting parasite glucose uptake and energy metabolism to achieve deworming effects. This off‑white crystalline powder complies with major veterinary pharmacopoeia standards including BPV and EP. It is intended exclusively for veterinary drug manufacturing, not for human use.
Similar Products of Oxfendazole below:
| Product Name | CAS No. | Core Feature |
| Fenbendazole | 43210‑67‑9 | Parent compound of oxfendazole; broad‑spectrum benzimidazole anthelmintic |
| Albendazole | 54965‑21‑8 | Broad‑spectrum, well‑known veterinary API, also has flukicidal activity |
| Mebendazole | 31431‑39‑7 | Benzimidazole carbamate, high activity against nematodes and tapeworms |
| Febantel | 58306‑30‑2 | Pro‑drug, metabolized into fenbendazole / oxfendazole in‑vivo |
| Oxibendazole | 20559‑55‑1 | Low‑toxic benzimidazole, mainly for gastrointestinal nematodes |
| Flubendazole | 31431‑34‑8 | Fluorinated benzimidazole, good against gastrointestinal worms |
Applications of Oxfendazole
Oxfendazole is a broad‑spectrum benzimidazole anthelmintic API exclusively for veterinary formulation manufacturing. It is mainly used to develop oral veterinary finished products targeting gastrointestinal nematodes, lungworms and some tapeworm species in ruminants, horses, swine and companion animals. Common dosage forms include oral suspensions, boluses, tablets and premix feed additives for livestock farms. As the active metabolite of fenbendazole, it delivers reliable antiparasitic performance for animal health product R&D and commercial‑scale drug production. It shall not be applied for human‑related preparations. End‑users must complete local regulatory registration before commercial launch in target markets.
Benefite of Oxfendazole
Oxfendazole offers distinct technical advantages as a benzimidazole‑class veterinary anthelmintic API. Compared with many related benzimidazole compounds, it exhibits good oral bioavailability after animal administration, supporting reliable efficacy against gastrointestinal nematodes, lungworms and selected tapeworms. This high‑purity raw material meets BPV and EP pharmacopoeia requirements, helping manufacturers produce stable, consistent‑quality finished veterinary dosage forms. It features convenient formulation compatibility for boluses, suspensions and feed premixes, bringing flexibility for different livestock and companion‑animal product developments. Strict quality control and traceable batch records support customers' registration and documentation work for target veterinary markets.
Shipping &Package
Sample Packaging: 10g–100g, sealed aluminum foil vacuum bags, moisture-proof and dust-proof for lab R&D testing
Bulk Standard Packaging: 25kg/drum, double PE inner bag + export-grade pharmaceutical fibre drum, safe and pressure-resistant
Custom Packaging: Customizable specifications (1kg, 5kg, 10kg) to meet pilot production and personalized production needs
Packaging Advantages: Fully sealed, moisture-proof, light-shielding, pollution-free, effectively guarantee product stability
Shipping Service: Global shipping support, professional packaging reinforcement for long-distance sea and air transportation
Supporting Documents: Complete shipping documents, customs declaration materials and technical files for customer clearance and registration
Customer Feedback
CONTACT PAGE
We provide lab‑sample and bulk‑grade Oxfendazole API with flexible packaging sizes. Global delivery and full supporting documents are available. Contact me to get quotes and samples.
1.Inquiry methods：
Email:alice@xaheshun.com
Whatspp:+8618509260106
Online instant messaging
2.Contact Information：
Name：Alice
Telephone :+8618509260106
Email:alice@xaheshun.com
FAQ
Q: What is Oxfendazole used for?
A: Oxfendazole (CAS 53716-50-0) is a broad-spectrum benzimidazole veterinary anthelmintic API. It is widely used for manufacturing veterinary deworming products to control gastrointestinal nematodes, lungworms and certain tapeworms in cattle, sheep, horses, swine and companion animals.
Q: What is the CAS number of Oxfendazole?
A: The CAS number of Oxfendazole is 53716-50-0. It is also known as Fenbendazole Sulfoxide in veterinary raw material industry
Q: What are the quality standards of your Oxfendazole API?
A: Our Oxfendazole complies with BPV and EP veterinary pharmacopoeia standards. The assay ranges from 98.0%–102.0%, with strictly controlled related substances, loss on drying and heavy metals, suitable for global veterinary drug registration.
Q: What dosage forms can Oxfendazole be used to produce?
A:It is suitable for multiple veterinary finished formulations, including oral boluses, tablets, oral suspensions and feed premixes. It is the mainstream raw material for livestock and pet deworming finished drugs.
Q: How should Oxfendazole be stored?
A:Store Oxfendazole tightly sealed in a cool, dry and dark environment, away from high temperature, moisture and strong oxidizing agents. The shelf life is 24–36 months under recommended original packaging storage conditions.
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