2,2-Dimethyl-3-(2-methylpropyl)cyclopropanecarboxylic acid p-(methoxymethyl)benzyl ester is a pyrethroid insecticide used for controlling a wide range of insects. It acts as a neurotoxin, disrupting the nervous system of target pests by prolonging sodium channel opening, leading to hyperexcitation, muscle spasms, paralysis, and death. The cyclopropane structure enhances lipophilicity, improving penetration through insect cuticles, while the methoxymethylbenzyl ester group aids in controlled release and environmental persistence, contributing to the stability and biological activity of the compound. Commonly formulated for household pests, agricultural insects such as aphids, caterpillars, and flies, and public health vectors like mosquitoes. Suitable for use on vegetables, fruits, and economic crops, with low toxicity to humans and mammals when applied at recommended rates.