氯氰菊酯，又名灭百可、兴棉宝、安绿宝、赛灭灵，是常用的杀虫剂，应用于大规模商业农业以及家庭用途。

氯氰菊酯是一种合成的除虫菊精类，对于昆虫是一种速效神经毒素，对猫也有高毒性。氯氰菊酯常以黄色至琥珀色粘稠液体呈现，虽然难溶解于水，但能溶解于有机溶剂，例如醇类、氯代烃类、酮类、环己烷、苯、二甲苯等等。虽然它在土壤和植物上容易分解，但在室内环境表面可以残留数周。尽管对光热都还算稳定 ，但是阳光、水、氧气会加速分解氯氰菊酯。 它具触杀和胃毒作用，药效比氯菊酯高，适用于防虫杀虫，例如蝇类、蚊类和蚋属等昆虫。根据NPTN(National Pesticides Telecommunications Network)的研究显示，氯氰菊酯对于鱼类有极高的毒性。

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.