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 Chemical Search

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: