Resmethrin

Synonyms

(5-(Phenylmethyl)-3-furanyl)methyl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate (9CI); (5-Benzyl-3-furyl) methyl-2,2-dimethyl-3-(2-methylpropenyl)-cyclopropanecarboxylate; (5-Benzyl-3-furyl)methyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate; (5-Phenylmethyl-3-furan)methyl-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropane carboxylate; 5-Benzyl-3-furylmethyl (+-)-cis-trans-chrysanthemate; 5-Benzyl-3-furylmethyl (1RS)-cis,trans-chrysanthemate; 5-Benzyl-3-furylmethyl (1RS)-cis-trans-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate; 5-Benzyl-3-furylmethyl (1RS,3RS;1RS,3SR)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate; 5-Benzyl-3-furylmethyl(+-)-cis,trans-chrysanthemate; 5-Benzylfurfuryl chrysanthemate; ARI-B; Benzofuroline; Benzyfuroline; Chryson; Chrysron; Crossfire; Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (5-(phenylmethyl)-3-furanyl)methyl ester; Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methylpropenyl)-, (4-(2-benzyl)furyl) methyl ester; Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methylpropenyl)-, (5-benzyl-3-furyl)methyl ester; ENT 27474; Enforcer; FMC 17370; For-syn; Isathrine; NIA 17370; NRDC 104; OMS-1206; Penick 1382; Penncapthrin; Premgard; Pynosect; Pyresthrin; Resmethrin [ANSI]; Resmethrine [ISO-French]; Resmetrina [Portuguese]; S.B. Penick 1382; SB Pennick 1382; SBP-1382; Synthrin; [ChemIDplus] UN3349

Category

Pyrethrins/Pyrethroids

Description

Colorless solid; [ICSC] Colorless or off-white to tan solid; [HSDB]

Sources/Uses

Used as insecticide for control of household and public health pests (including aerial application for mosquitoes) in residential, commercial, and industrial areas, animal dwellings, food handling/ storage facilities, and greenhouses; Also used for domestic and farm animals (in sprays and shampoos) and fabric protection; [HSDB]

Comments

A synthetic pyrethroid; [Merck Index] A skin and eye irritant; [ICSC] May cause eye irritation and skin rash; [HSDB] Effects in high-dose animal studies include convulsions; [RTECS] "All risk concerns for occupational handlers that mix, load, and/or apply resmethrin can be mitigated with personal protective equipment (PPE)." [EPA REDs] See "Pyrethrum."

Use restricted to certified applicators; Not registered in the US for agricultural applications; [HSDB]

Reference Link #1

Biomedical References

1.13E-08 mm Hg

LC50 (rat) > 9,490 mg/m3/4h

Explanatory Notes

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

Other CNS neurotoxin

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)
• Textiles (Printing, Dyeing, or Finishing)