IUPAC name
(E)-(RS)-1-Ethynyl-2-methylpent-2-enyl (1RS,3RS;1RS,3SR)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
Other names
54406-48-3 YesY
3D model (Jmol) Interactive image
ChemSpider 4939400
ECHA InfoCard 100.053.759
KEGG C18524 YesY
PubChem 6434488
Molar mass 274.40 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Empenthrin (also called vaporthrin) is a synthetic pyrethroid used in insecticides. It is active against broad spectrum of flying insects including moths and other pests damaging textile.[1] It has low acute mammalian toxicity (its oral LD50 is above 5000 mg/kg in male rats, above 3500 mg/kg in female rats and greater than 3500 mg/kg in mice).[2] It is however very toxic to fish and other aquatic organisms (96-hour LC50 in Oncorhynchus mykiss is 1.7 μg/L, 48-hour EC50 in Daphnia magna is 20 μg/L).[1]

Empenthrin preparation against clothing moths


  1. 1 2 empenthrin (Ref: S 2852 Forte)
  2. Mammalian toxicity of empenthrin (Vaporthrin, S-2852F)
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