Agent Name


CAS Number




Major Category



(+-)-3-Phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; (3-Phenoxyphenyl)methyl 3-(2,2-dichlorethenyl)-2,2-dimethylcyclopropanecarboxylate; 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid (3-phenoxyphenyl)methyl ester; 3-(Phenoxyphenyl)methyl (+-)-cis,trans-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate; 3-Phenoxybenzyl (1RS)-cis-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; 3-Phenoxybenzyl (1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; 3-Phenoxybenzyl 2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylate; 3-Phenoxybenzyl(+-)-cis, trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate; Acticin; Ambush; Ambushfog; Anomethrin N; Antiborer 3768; BW-21-Z; Bematin 987; Chinetrin; Coopex; Corsair; Cosair; Diffusil H; Dragnet; Dragnet FT; Dragon; Ecsumin; Ectiban; Efmethrin; Eksmin; Elimite; Exmin; Expar; Exsmin; FMC 33297; FMC 41655; ICI-PP 557; Imperator; Indothrin; Insorbcid MP; Ipitox; JF 7065; Kafil; Kaleait; Kavil; Kestrel; Kestrel (pesticide); Kudos; LE 79-519; Lyclear; MP79; Mitin BC; NRDC 143; Nix; OMS 1821; Outflank; Outflank-stockade; PP 557; Perigen; Perigen W; Permanone 80; Permasect; Permasect-25EC; Permethrin,racemic; Permethrine; Permethrine [ISO-French]; Permethrinum [Latin]; Permetrin (Hungarian); Permetrina [Portuguese]; Permit; Permitrene (Hungarian); Perthrine; Picket; Picket G; Pounce; Pramex; Pynosect; Quamlin; Ridect Pour-On; S 3151; S-3151; SBP 15131TEC; SBP-1513; SBP-1513TEC; Stomoxi; Stomoxin; Stomoxin P; Stomozan; Talcord; WL 43479; m-Phenoxybenzyl (+-)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; m-Phenoxybenzyl (+1)-cis,trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate; Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (3-phenoxyphenyl)methyl ester; Cyclopropanecarboxylic acid, 3-(2,2-dichlorovinyl)-2,2-dimethyl-, 3-phenoxybenzyl ester, (+-)-, (cis,trans)-; [ChemIDplus] UN3352




Colorless to pale yellow solid or liquid; [Merck Index] Yellow-brown to brown viscous liquid or solid; [ICSC] Solid; mp = 34 deg C; [MSDSonline]


Used as an ectoparasiticide in humans and animals; [Merck Index] Used as a nematocide, acaricide, and insecticide; [Hawley]


A skin, eye, and respiratory tract irritant; [ICSC] May be a skin sensitizer; [eChemPortal: ESIS] May cause irritation; May cause skin sensitization; Targets the CNS in high-dose animal studies; [MSDSonline] Rapidly metabolized; Does not accumulate in body; Causes hyperactivity and tremors in high-dose feeding studies of experimental animals; Exposed workers complain of skin and eye irritation; No skin sensitization in animal studies; [Reference #1] See "Imiprothrin."

Reference Link

INCHEM PDS: Permethrin

Exposure Assessment
Vapor Pressure

2.18E-8 mm Hg

Lethal Concentration

LC50 (rat) = 485 mg/m3

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Pyrethroid pesticide, liquid, toxic."

Reference Link

EPA Pesticide Fact Sheet: Permethrin - 2009

Adverse Effects

Other CNS Neurotoxin


Hepatotoxin, Secondary

IARC Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap

Industrial Processes with risk of exposure: