Description

Para-Cypermethrin is a synthetic pyrethroid insecticide characterized by high efficacy against a broad spectrum of agricultural and public health pests. It delivers rapid knockdown and long-lasting residual control, making it a critical active ingredient for integrated pest management (IPM) programs worldwide. Formulators, agrochemical manufacturers, and contract research organizations rely on Para-Cypermethrin CAS NO 61732-64-7 for the production of EC, SC, WP, and granular formulations targeting resistance-prone insect populations.

Application

• Agricultural crop protection (cotton, vegetables, cereals, fruits) against lepidopteran, coleopteran, and hemipteran pests
• Public health vector control — mosquito, fly, cockroach, and bed bug management in indoor residual spraying (IRS) and space spraying
• Animal health applications — ectoparasite control in livestock and poultry (e.g., pour-ons, sprays, dips)
• Professional pest control services for structural and urban pest management
• Seed treatment formulations to protect germinating crops from soil-dwelling insects
• Manufacturing of synergized formulations with piperonyl butoxide (PBO) to overcome metabolic resistance

Basic Information

Product Name	Para-Cypermethrin
CAS No.	61732-64-7
Molecular Formula	C22H19Cl2NO3
Molecular Weight	416.30 g/mol
Synonyms	3-(2-Chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid cyano(3-phenoxyphenyl)methyl ester; α-Cypermethrin (racemate); cis-Cypermethrin; (RS)-α-Cypermethrin; Cypermethrin isomer 1; 1R-cis-α-cypermethrin; (1R,3R)-cis-α-cypermethrin; Pyrethroid insecticide 61732-64-7
EINECS	263-008-5

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches conform to ISO 9001-certified manufacturing protocols and meet applicable regulatory requirements including FAO/WHO specifications, EU Regulation (EC) No 396/2005, and US EPA tolerance guidelines for technical-grade active ingredients.

Storage

Preserve in a tightly closed container, protected from light. Store under inert atmosphere (nitrogen or argon) due to susceptibility to oxidation. Keep at temperatures between 15–25°C in a dry, well-ventilated area away from strong oxidizing agents, strong alkalis, and organic solvents. Avoid exposure to humidity and direct sunlight.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Assay (by HPLC)	≥ 95.0%
Identification (IR)	Conforms to reference standard
Related Substances (HPLC)	≤ 3.0% total impurities
Residue on Ignition	≤ 0.1%
Water Content (Karl Fischer)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Specific Optical Rotation [α]D²⁵	+35° to +45° (c = 1 in chloroform)

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