Description

Milbemycin α9 is a potent macrocyclic lactone belonging to the milbemycin family, a group of compounds widely recognized for their exceptional anthelmintic and insecticidal activity. Its unique chemical structure provides a high degree of efficacy against a broad spectrum of parasites, making it a critical active ingredient in veterinary and agricultural formulations. This compound is essential for manufacturers developing advanced endectocide products for animal health and crop protection solutions targeting global markets.

Application

• Veterinary Pharmaceuticals: As a key active pharmaceutical ingredient (API) in injectable, topical (pour-on), and oral formulations for the control of internal and external parasites in livestock (cattle, sheep, goats) and companion animals.
• Animal Health Premixes: Incorporated into medicated feed premixes for the prevention and treatment of parasitic infections in production animals.
• Agrochemicals: Used in the synthesis and formulation of high-performance insecticides and miticides for agricultural and horticultural use.
• Research & Development: Serves as a critical reference standard and building block in pharmaceutical and agrochemical R&D for developing new parasitic control agents.
• Aquaculture: Investigated for use in aquaculture for the management of parasitic infestations in farmed fish.

Basic Information

Product Name	Milbemycin α9
CAS No.	51596-14-6
Molecular Formula	C₃₂H₄₆O₇
Molecular Weight	542.71 g/mol
Synonyms	Milbemycin alpha 9; LL-F28249-alpha; 5-O-Demethyl-28-deoxy-6,28-epoxy-25-(1-methylpropyl)milbemycin B; 13beta,25-Didehydro-5-demethyl-28-deoxy-6,28-epoxy-25-(1-methylpropyl)milbemycin B; (6R,25S)-5-O-Demethyl-28-deoxy-6,28-epoxy-25-(1-methylpropyl)milbemycin B; Milbemycin A9; LL-F28249α
EINECS	257-286-4

Quality Control

Our Milbemycin α9 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including HPLC for assay and related substances, IR for identification, and residual solvent analysis. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each batch to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from moisture and direct light exposure to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.