Cypermethrin Chemical Information

Cypermethrin is a synthetic pyrethroid used as an insecticide in large-scale commercial agricultural applications as well as in consumer products for domestic purposes. It behaves as a fast-acting neurotoxin in insects. It is easily degraded on soil and plants but can be effective for weeks when applied to indoor inert surfaces. Exposure to sunlight, water and oxygen will accelerate its decomposition. Cypermethrin is highly toxic to fish, bees and aquatic insects, according to the National Pesticides Telecommunications Network (NPTN). It is found in many household ant and cockroach killers, including Raid and ant chalk.


Name:Cypermethrin

EINECS:257-842-9

Molecular Formula:C22H19Cl2NO3

CAS Registry Number:52315-07-8

Appearance:Yellowish brown viscous semi-solid mass

Molecular Weight:416.32

Density:1.329 g/cm3

Boiling Point:511.3 oC at 760 mmHg

Melting Point:60-80 °C

Flash Point:263 °C

Storage Temperature:20°C

Refractive index:n20/D 1.57

Solubility:insoluble in water

Biological Activity:Type II synthetic pyrethroid insecticide; an extremely potent, cell-permeable inhibitor of calcineurin.

Stability:Stable. Incompatible with bases, strong oxidizing agents.

Usage:Synthetic pyrethroid insecticide, usually exists as a mixture of cis and trans isomers. Ectoparasiticide