Empenthrin

Structural formula
	Structural formula without stereochemistry
General
Surname	Empenthrin
other names	Vaporthrin; 2,2-Dimethyl-3- (2-methylprop-1-enyl) cyclopropane-1-carboxylic acid ( E ) -4-methylhept-4-en-1-yn-3-yl ester;
Molecular formula	C 18 H 26 O 2
External identifiers / databases
EC number	259-154-4
ECHA InfoCard	100.053.759
PubChem	6434488
Wikidata	Q757060
Drug information
Drug class	Antiparasitic agent (external)
properties
Molar mass	274.40 g mol −1
Physical state	liquid
Melting point	25 ° C
boiling point	295 ° C
solubility	poorly soluble in water (2.4 mg l −1 at 20 ° C)
safety instructions
H and P phrases	H: 302-411
	P: 273
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Empenthrin (also known under the name Vaporthrin ) is a synthetic pyrethroid , which is mainly used as an insecticide . It is mainly used because of its effectiveness against a wide range of flying insects (including moths and other household pests that damage fabrics).

It has low toxicity for mammals on. The oral LD ₅₀ is over 5000 mg / kg for male rats , over 3500 mg / kg for female rats and over 3500 mg / kg for mice . However, it is (despite its poor water solubility) extremely harmful to fish and other aquatic organisms (96-hour LC ₅₀ for Oncorhynchus mykiss is 1.7 μg / L, 48-hour EC ₅₀ for Daphnia magna is 20 μg / L).

Empenthrin hangers against clothes moths

Individual evidence

↑ ^a ^b ^c ^d Entry on Empenthrin in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on May 24, 2016.
↑ ^a ^b ^c Entry on 1-ethynyl-2-methylpent-2-enylchrysanthemate in the GESTIS substance database of the IFA , accessed on May 31, 2016(JavaScript required) .
↑ H. Kaneko, S. Kawaguchi, Y. Misaki, Y. Koyama, A. Nakayama, H. Kawasaki, A. Hirohashi, A. Yoshitake, H. Yamada: [Mammalian toxicity of empenthrin (Vaporthrin, S-2852F)] . In: The Journal of toxicological sciences. Volume 17 Suppl 3, November 1992, pp. 313-334, PMID 1293329 .

[ppdb-1] Entry on Empenthrin in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on May 24, 2016.

[GESTIS-2] Entry on 1-ethynyl-2-methylpent-2-enylchrysanthemate in the GESTIS substance database of the IFA , accessed on May 31, 2016(JavaScript required) .

[3] H. Kaneko, S. Kawaguchi, Y. Misaki, Y. Koyama, A. Nakayama, H. Kawasaki, A. Hirohashi, A. Yoshitake, H. Yamada: [Mammalian toxicity of empenthrin (Vaporthrin, S-2852F)] . In: The Journal of toxicological sciences. Volume 17 Suppl 3, November 1992, pp. 313-334, PMID 1293329 .