Description

trans-Permethrin is a highly effective synthetic pyrethroid insecticide, specifically the trans-isomer of permethrin. This compound is valued for its potent insecticidal activity, enhanced stability, and lower mammalian toxicity compared to some other pest control agents. It is a critical active ingredient for manufacturers in the agricultural, public health, and vector control industries, where reliable and long-lasting pest management is required.

Application

• Agricultural Insecticides: Formulated for the protection of a wide range of crops, including cotton, fruits, and vegetables, against lepidopteran and coleopteran pests.
• Public Health Pest Control: Used in sprays and treatments for mosquito abatement programs and the control of flies, ticks, and other disease vectors.
• Professional & Consumer Pest Management: A key component in products for termite control, perimeter sprays for buildings, and pet care formulations like flea and tick dips and shampoos.
• Textile & Material Protection: Incorporated into treatments for fabrics, nets (e.g., mosquito bed nets), and other materials to provide durable insect resistance.
• Wood Preservatives: Used in formulations to protect timber and wood products from insect damage.

Basic Information

Product Name	trans-Permethrin
CAS No.	61949-77-7
Molecular Formula	C21H20Cl2O3
Molecular Weight	391.29 g/mol
Synonyms	(1R,3R)-3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylic acid (3-phenoxyphenyl) methyl ester; (1R-trans)-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid (3-phenoxyphenyl)methyl ester; trans-(+)-Permethrin; (1R,3R)-Permethrin; trans-Cypermethrin isomer; NRDC 163 (trans-isomer); FMC 33297 (trans-isomer)
EINECS	263-518-7

Quality Control

Our trans-Permethrin is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including HPLC for assay and isomer ratio, GC for residual solvents, and other relevant pharmacopeial methods. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C/59-77°F). Keep away from heat, sparks, and open flame. Due to its nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability, especially after opening the original container.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Isomer Ratio (trans/cis)	≥ 95:5
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 1.5%

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