High quality harmless Chlorempenthrin is an efficient, low toxicity of new pyrethroids on mosquitoes, flies, cockroaches. It has a high vapor pressure, good volatility, killing strong features, pests down fast, especially when sprayed down and fumigation effect is more significant. Economic pyrethroid chlorempenthrin has great effect on stomach toxicity and tag and it can be used for prevention and control of warehouse storage insect pests.