Description

α-Cyano-3-Phenoxybenzyl [1R-[1Alpha(R*),3Alpha]]-3-(2,2-Dichlorovinyl)-2,2-Dimethylcyclopropanecarboxylate is a high-purity, single-isomer synthetic pyrethroid intermediate of significant commercial importance. Its precise stereochemistry is critical for delivering optimal biological activity in advanced agrochemical formulations. This compound is essential for manufacturers and R&D facilities developing next-generation, high-efficacy insecticides and pest control solutions for agricultural and public health applications.

Application

• Key Intermediate for Synthetic Pyrethroids: Primary building block for the synthesis of high-performance insecticides like cypermethrin, deltamethrin, and fenvalerate.
• Agricultural Insecticide Production: Used in formulating crop protection products targeting a broad spectrum of pests in cotton, fruits, and vegetables.
• Public Health Product Development: Integral in manufacturing products for vector control, such as mosquito repellents and household insecticide sprays.
• Animal Health Formulations: Employed in the development of ectoparasiticides for livestock and pets.
• Research & Development: Serves as a critical reference standard and starting material in agrochemical R&D for novel compound synthesis.
• Specialty Chemical Synthesis: Used in fine chemical synthesis for creating analogs and derivatives with modified biological properties.

Basic Information

Product Name	α-Cyano-3-Phenoxybenzyl [1R-[1Alpha(R*),3Alpha]]-3-(2,2-Dichlorovinyl)-2,2-Dimethylcyclopropanecarboxylate
CAS No.	65731-83-1
Molecular Formula	C22H19Cl2NO3
Molecular Weight	416.30 g/mol
Synonyms	(1R,3R)-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid cyano(3-phenoxyphenyl)methyl ester; (1R,3R)-Deltamethric acid α-cyano-3-phenoxybenzyl ester; Deltamethrin acid isomer; (1R,3R)-Deltamethrin intermediate; (R)-α-Cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; Single-isomer pyrethroid acid intermediate; [1R-[1α(R*),3α]]-Isomer of cypermethrin acid
EINECS	265-898-1

Quality Control

Our α-Cyano-3-Phenoxybenzyl [1R-[1Alpha(R*),3Alpha]]-3-(2,2-Dichlorovinyl)-2,2-Dimethylcyclopropanecarboxylate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high stereochemical purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and isomer content, meeting the stringent requirements of agrochemical active ingredient manufacturing. We adhere to cGMP guidelines where applicable to support our global customer base.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is light-sensitive and easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Isomeric Purity (HPLC)	≥ 99.0% (1R,3R isomer)
Melting Point	98°C - 102°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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