Description

(3-Phenoxyphenyl)Methyl (1S,3R)-3-(2,2-Dichloroethenyl)-2,2-Dimethyl-C Yclopropane-1-Carboxylate CAS NO 51877-74-8 is a high-purity synthetic pyrethroid intermediate of significant commercial importance. This compound is valued for its role as a key chiral building block in the synthesis of advanced, high-efficacy insecticides. It is primarily required by manufacturers in the agrochemical industry for the production of active ingredients, as well as by research institutions engaged in the development of novel crop protection agents.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of Type II pyrethroid insecticides, such as cypermethrin, deltamethrin, and fenvalerate.
• Active Ingredient Manufacturing: Used in the final production stages of insecticidal formulations for agricultural and public health use.
• Chemical Research & Development: Serves as a standard and starting material for developing new chiral synthetic routes and novel insecticide candidates.
• Technical Grade Production: Supplied to formulators for the manufacture of emulsifiable concentrates (EC), wettable powders (WP), and other end-use products.

Basic Information

Product Name	(3-Phenoxyphenyl)Methyl (1S,3R)-3-(2,2-Dichloroethenyl)-2,2-Dimethyl-C Yclopropane-1-Carboxylate
CAS No.	51877-74-8
Molecular Formula	C21H20Cl2O3
Molecular Weight	391.29 g/mol
Synonyms	(1R,3S)-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid (3-phenoxyphenyl)methyl ester; (S)-α-Cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate alcohol moiety; Deltamethrin alcohol; (1R)-cis-3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid (3-phenoxyphenyl)methyl ester; NRDC 161; Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester, (1S,3R)-
EINECS	257-471-6

Quality Control

Our (3-Phenoxyphenyl)Methyl (1S,3R)-3-(2,2-Dichloroethenyl)-2,2-Dimethyl-C Yclopropane-1-Carboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure it meets exacting standards for use in sensitive synthesis processes. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); therefore, containers should be kept sealed under an inert gas blanket (e.g., nitrogen or argon) after opening to maintain product integrity. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Chiral Purity (HPLC)	≥ 99.0% (1S,3R isomer)
Related Substances (HPLC)	Total impurities ≤ 1.5%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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