Suzhou Pharmaceutical Technology Co., Ltd. (China) supplies Milbemycin Oxime API CAS 129496-10-2 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Milbemycin Oxime API — Overview
Milbemycin Oxime (CAS: 129496-10-2, also known as milbemycin oxime A3/A4, milbemicina oxima, Interceptor active ingredient, Milbemite active ingredient, and CGA-179246) is a veterinary macrocyclic lactone antiparasitic API used in canine and feline formulation programs where local regulations permit. Suzhou Pharmaceutical Technology Co., Ltd. supplies Milbemycin Oxime API in bulk from Suzhou, China, with export to South America, Australia, New Zealand, Mexico, Canada, and worldwide markets. Export documentation: COA and MSDS standard for all orders.
| Product Name | Milbemycin Oxime |
| Structural Formula |  |
| Alias | Milbemycin oxime A3/A4; Milbemicina oxima; Interceptor active ingredient; Milbemite active ingredient; CGA-179246 |
| CAS Number | 129496-10-2 |
| Molecular Formula | C63H88N2O14 |
| Molecular Weight | 1097.4 g/mol |
| Purity | Available by agreed HPLC specification |
| Appearance | White to off-white powder |
| Storage | Store sealed, protected from light and moisture |
> Applications
Milbemycin Oxime is used by veterinary pharmaceutical manufacturers and research groups developing antiparasitic products for dogs and cats. API supply is intended for qualified buyers who will confirm species, indication language, dose, residue or safety requirements, and finished-dose registration obligations in their own markets.
Canine heartworm and intestinal nematode programs
In three randomized, blinded, vehicle-controlled studies, a spinosad and milbemycin oxime combination was evaluated in dogs challenged with recent Dirofilaria immitis field isolates, with 10 dogs per treatment group in each study (Veterinary Parasitology, 2011, PMID:21530085, n=60). This supports Milbemycin Oxime API relevance for veterinary antiparasitic formulation research involving companion animals.
Companion-animal formulation development
Buyers typically evaluate assay, A3/A4 composition, related substances, residual solvents, water content, particle behavior, and stability data before moving from sample quantities to pilot or commercial batches. We supply API only, not finished tablets, chewables, otic products, or combination veterinary medicines.
> Sourcing & Supply
Suzhou Pharmaceutical Technology Co., Ltd. is an R&D-driven pharmaceutical company with in-house synthesis and analytical capability for Milbemycin Oxime API. Small batches (up to 10 kg) are produced directly by our technical team in Suzhou. For larger commercial quantities, production is scaled up at qualified manufacturing facilities, with export documentation provided according to the order scope.
- Small-batch orders (≤10 kg): synthesized by our technical team in Suzhou. Lead time 10–14 business days from order confirmation.
- Commercial bulk (>10 kg): scaled up at qualified manufacturing facilities. Lead time 14–21 business days depending on batch size and documentation.
We export Milbemycin Oxime API to buyers across South America — including Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay, and Uruguay — as well as to Australia, New Zealand, Mexico, and Canada. Inquiries from European, Middle Eastern, and Asian markets are also welcome.
> Quality & Export Documentation
All Milbemycin Oxime shipments are accompanied by a Certificate of Analysis (COA) confirming identity, appearance, assay, and related substances against batch specification. Purity is tested by HPLC against an authenticated reference standard. MSDS is provided for all orders, and Certificate of Origin (COO) is available for commercial bulk shipments.
| Order size | Documentation included |
| ≤10 kg (small-batch / research) | COA + MSDS |
| >10 kg (commercial bulk) | COA + MSDS + COO |
> Packaging & Logistics
- 100 g, 500 g: double-layered aluminium foil bag, heat-sealed, nitrogen-purged
- 1 kg: aluminium foil bag inside kraft paper box
- 5 kg, 10 kg: aluminium foil bag inside fibre drum
- >10 kg: packaging agreed according to commercial order requirements
Milbemycin Oxime API is shipped with light- and moisture-protective packaging and batch labels matched to the COA. Shipping options include express courier for sample and kilogram quantities, air freight for 1–10 kg orders, and sea freight for larger commercial shipments where timing allows.
> Pricing & Supply
Milbemycin Oxime pricing is provided on request. We do not publish list prices because the final quote depends on order quantity, purity requirement, documentation needs, shipping destination, and current raw material costs.
- MOQ: 100 g for qualified buyers
- Sample policy: 10–50 g samples available for formulation evaluation or analytical confirmation
- Bulk discount tiers apply at 500 g, 1 kg, 5 kg, and 10 kg
- Payment: T/T (bank transfer). 100% in advance for standard orders. Terms for larger repeat orders by arrangement.
> Frequently Asked Questions
What is the minimum order quantity for Milbemycin Oxime API?
The minimum order quantity for Milbemycin Oxime API is 100 grams. Sample quantities of 10–50 g are available for qualified buyers before pilot or commercial orders.
What documents are included with a Milbemycin Oxime bulk order?
All Milbemycin Oxime orders include a COA and MSDS in English. For commercial bulk orders above 10 kg, COO is available as standard export documentation.
Can I request a Milbemycin Oxime sample before placing a bulk order?
Yes. Sample quantities of 10–50 g are available for qualified buyers. Samples are normally dispatched within 7 business days of inquiry confirmation.
Do you export Milbemycin Oxime API to South America?
Yes. We support Milbemycin Oxime API inquiries from Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay, and Uruguay.
Can buyers in Australia, New Zealand, Mexico, or Canada order Milbemycin Oxime?
Yes. We supply Milbemycin Oxime API to buyers in Australia, New Zealand, Mexico, and Canada. COA and MSDS are included with all orders.
What is Milbemycin Oxime used for in veterinary medicine?
Milbemycin Oxime is used as a veterinary macrocyclic lactone active ingredient for companion-animal antiparasitic products where local regulations allow.
What is the mechanism of action of Milbemycin Oxime?
Milbemycin Oxime binds parasite glutamate-gated chloride channels, increasing chloride ion permeability and causing paralysis in susceptible parasites.
Is Interceptor the same as Milbemycin Oxime?
Interceptor is a finished veterinary product brand whose active ingredient is milbemycin oxime. We supply bulk Milbemycin Oxime API, not finished veterinary products.
What specification is available for Milbemycin Oxime CAS 129496-10-2?
Milbemycin Oxime is supplied by agreed HPLC specification, including assay and related-substance controls defined before order confirmation.
How is Milbemycin Oxime packaged and shipped internationally?
Milbemycin Oxime API is shipped in foil bags or foil-lined fibre drums with protection from light and moisture during international transit.
> Related Products
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- Spinosad | CAS 131929-60-7 — Veterinary insecticide API
> Request a Quote or Sample
To request a quote or sample for Milbemycin Oxime API (CAS 129496-10-2), please contact us directly at Info@fmyykj.com.
Include in your inquiry: required quantity (grams or kg), destination country, documentation requirements (COA + MSDS standard; COO for bulk), and intended use (veterinary formulation / compounding / research / other). We respond to all inquiries within 1 business day.
Last reviewed: June 2026