Description

α-Cyano-3-Phenoxybenzyl [1R-[1Alpha(R*),3Beta]]-3-(2,2-Dichlorovinyl)-2,2-Dimethylcyclopropanecarboxylate is a high-purity, single-isomer synthetic pyrethroid intermediate of significant commercial importance. This compound is valued for its precise stereochemistry, which is critical for the synthesis of highly effective and targeted insecticidal agents. It is primarily sought by manufacturers in the agrochemical and fine chemical industries for the production of advanced crop protection products and public health insecticides.

Application

• Key Intermediate for Deltamethrin Synthesis: Serves as the primary chiral building block for the commercial production of the potent pyrethroid insecticide Deltamethrin.
• Agrochemical Manufacturing: Used in the formulation of high-performance insecticides for agricultural use, protecting crops from a broad spectrum of pests.
• Public Health Insecticides: Incorporated into formulations for mosquito control, household pest control, and other vector management solutions.
• Fine Chemical Synthesis: Employed in research and development for creating novel pyrethroid analogs and other specialized chemical entities.
• Veterinary Pharmaceutical Precursor: Acts as an intermediate in the synthesis of ectoparasiticides used in animal health products.

Basic Information

Product Name	α-Cyano-3-Phenoxybenzyl [1R-[1Alpha(R*),3Beta]]-3-(2,2-Dichlorovinyl)-2,2-Dimethylcyclopropanecarboxylate
CAS No.	66841-24-5
Molecular Formula	C22H19Cl2NO3
Molecular Weight	416.30 g/mol
Synonyms	(1R,3R)-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid (S)-α-cyano-3-phenoxybenzyl ester; (S)-α-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; Deltamethrin Acid Chloride Ester; Deltamethrin Intermediate; Decamethrin Acid Chloride Ester; (1R-cis)-3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic Acid Cyano(3-phenoxyphenyl)methyl Ester; NRDC 161
EINECS	266-484-5

Quality Control

Our production of this chiral intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high isomeric purity, which is paramount for downstream efficacy. Quality is verified through advanced analytical techniques including HPLC, GC, and chiral analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and isomer content is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Isomeric Purity (Chiral HPLC)	≥ 99.0% (1R,3R isomer)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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