Description

(1S)-trans-λ-Cyhalothrin CAS NO 76703-69-0 is a highly potent and stereochemically pure synthetic pyrethroid insecticide. Its primary value lies in its exceptional efficacy against a broad spectrum of insect pests at very low application rates, making it a cornerstone of modern integrated pest management (IPM) programs. This technical-grade active ingredient is essential for formulators and manufacturers serving the global agricultural, professional pest control, and public health vector control industries.

Application

• Agricultural Insecticide Formulations: Used as the key active ingredient in emulsifiable concentrates (EC), suspension concentrates (SC), and wettable powders (WP) for controlling lepidopteran, coleopteran, and dipteran pests in crops like cotton, soybeans, cereals, and vegetables.
• Professional Pest Management (PMP): Incorporated into termiticides and broad-spectrum insecticides for structural pest control against ants, cockroaches, termites, and other crawling insects.
• Public Health Vector Control: A critical component in formulations for mosquito control programs to combat malaria, dengue, and other mosquito-borne diseases, often used in indoor residual spraying (IRS) and treated bed nets.
• Animal Health: Used in ectoparasiticide formulations for livestock to control ticks, lice, and flies, improving animal welfare and productivity.
• Stored Product Protection: Applied to protect grains and other stored commodities from infestation by beetles, moths, and weevils.

Basic Information

Product Name	(1S)-trans-λ-Cyhalothrin
CAS No.	76703-69-0
Molecular Formula	C23H19ClF3NO3
Molecular Weight	449.85 g/mol
Synonyms	λ-Cyhalothrin (isomer unspecified); Cyhalothrin, λ-; (S)-α-cyano-3-phenoxybenzyl (1R,3R)-3-[(Z)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarboxylate; (1R,3R)-rel-(Z)-Cyano(3-phenoxyphenyl)methyl 3-[(1Z)-2-chloro-3,3,3-trifluoro-1-propen-1-yl]-2,2-dimethylcyclopropanecarboxylate; Karate; Demand; Icon; Matador; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our technical-grade (1S)-trans-λ-Cyhalothrin is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including chiral HPLC for isomeric purity and GC/HPLC for assay, to ensure it meets the high standards required for agrochemical formulation. Certificates of Analysis (COA) detailing purity, isomer content, and key impurity profiles are provided to guarantee consistency, performance, and regulatory compliance for our global customers.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). Keep away from heat, sparks, and open flame. Ensure the container is kept upright to prevent leakage. Store separately from strong oxidizers, strong bases, and foodstuffs.

Specification

Item	Specification
Appearance	Off-white to light beige solid or viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Isomeric Purity (Chiral HPLC)	≥ 98.0% (1S)-trans isomer
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (Karl Fischer)	≤ 0.5%
Acidity/Alkalinity	To pass test

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