Agent Name
CAS Number
Major Category
Permethrin formula graphical representation
(+-)-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; [INCHEM PDS: Permethrin] See "Imiprothrin."
Biomedical References

Exposure Assessment

Vapor Pressure
2.18E-08 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 #2

Adverse Effects

Other CNS neurotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
IARC Carcinogen
Not classifiable

Diseases, Processes, and Activities Linked to This Agent


Industrial Processes with risk of exposure: