Description

Milbemectin A3 is a high-purity, naturally derived component of the milbemycin family of macrocyclic lactones. This compound serves as a critical intermediate and reference standard in the development of advanced acaricides and insecticides. It is essential for manufacturers and R&D facilities in the agrochemical and pharmaceutical sectors requiring precise, high-quality active ingredients. Our supply ensures consistent purity and reliable performance for your formulation and research needs.

Application

• Primary use as a key intermediate in the synthesis of commercial miticides and insecticides.
• Reference standard for quality control and analytical method development in agrochemical manufacturing.
• Active ingredient research for novel veterinary and agricultural pest control formulations.
• Component in biochemical studies investigating the mode of action of macrocyclic lactones on invertebrate nervous systems.
• Starting material for the production of higher-value milbemycin derivatives.

Basic Information

Product Name	Milbemectin A3
CAS No.	51596-10-2
Molecular Formula	C₃₂H₄₄O₇
Molecular Weight	540.70 g/mol
Synonyms	Milbemycin A3; B-41A3; LL-F28249α; 5-O-Demethylmilbemycin A4; (10E,14E,16E)-(1R,4S,5'S,6R,6'S,8R,13R,20R,21R,24S)-6'-Ethyl-21,24-dihydroxy-5',11,13,22-tetramethyl-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-2,9,12,18-tetrone
EINECS	Contact for details

Quality Control

Our Milbemectin A3 is produced and tested under strict quality management systems to ensure it meets the high standards required for industrial and research applications. Each batch is analyzed to confirm identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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