Chemistry:Empenthrin

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Empenthrin
Empenthrin.svg
Names
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
Vaporthrin
Identifiers
3D model (JSmol)
ChemSpider
KEGG
UNII
Properties
C18H26O2
Molar mass 274.404 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
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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

References

  1. 1.0 1.1 "empenthrin" (in en). University of Hertfordshire. http://sitem.herts.ac.uk/aeru/iupac/Reports/1596.htm. 
  2. Hideo Kaneko; Shinobu Kawaguchi; Yoshinori Misaki; Y Koyama; A Nakayama; H Kawasaki; A Hirohashi; A Yoshitake et al. (Nov 1992). "MAMMALIAN TOXICITY OF EMPENTHRIN (VAPORTHRINR, S-2852F)" (in JA). The Journal of Toxicological Sciences (Japan: The Japanese Society of Toxicology) 17 (Supplement 3): 313–334. doi:10.2131/jts.17.supplementiii_313. PMID 1293329. https://www.jstage.jst.go.jp/article/jts1976/17/SupplementIII/17_SupplementIII_313/_article.