:Empenthrin
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 445808035
| ImageFile=Empenthrin.svg
| ImageSize=200px
| IUPACName=(E)-(RS)-1-Ethynyl-2-methylpent-2-enyl (1RS,3RS;1RS,3SR)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
| OtherNames=Vaporthrin
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo=54406-48-3
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII =K45WEG8WYL
| PubChem=6434488
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = C18524
| SMILES=CCC=C(C)C(C#C)OC(=O)C1C(C1(C)C)C=C(C)C
| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
| ChemSpiderID = 4939400
| InChI = 1/C18H26O2/c1-8-10-13(5)15(9-2)20-17(19)16-14(11-12(3)4)18(16,6)7/h2,10-11,14-16H,8H2,1,3-7H3/b13-10+
| InChIKey = YUGWDVYLFSETPE-JLHYYAGUBJ
| StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChI = 1S/C18H26O2/c1-8-10-13(5)15(9-2)20-17(19)16-14(11-12(3)4)18(16,6)7/h2,10-11,14-16H,8H2,1,3-7H3/b13-10+
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = YUGWDVYLFSETPE-JLHYYAGUSA-N
}}
|Section2={{Chembox Properties
| C=18 | H=26 | O=2
| Appearance=
| Density=
| MeltingPt=
| BoilingPt=
| Solubility=
}}
|Section3={{Chembox Hazards
| MainHazards=
| FlashPt=
| AutoignitionPt =
}}
}}
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. 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).{{cite journal |author1=Hideo Kaneko |author2=Shinobu Kawaguchi |author3=Yoshinori Misaki |author4=Y Koyama |author5=A Nakayama |author6=H Kawasaki |author7=A Hirohashi |author8=A Yoshitake |author9=H Yamada |title=MAMMALIAN TOXICITY OF EMPENTHRIN (VAPORTHRINR, S-2852F) |journal=The Journal of Toxicological Sciences |date=Nov 1992 |volume=17 |issue=Supplement 3 |pages=313–334 |doi=10.2131/jts.17.supplementiii_313 |pmid=1293329 |url=https://www.jstage.jst.go.jp/article/jts1976/17/SupplementIII/17_SupplementIII_313/_article |publisher=The Japanese Society of Toxicology |location=Japan |language=JA|doi-access=free }} 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).{{cite web |title=empenthrin |url=http://sitem.herts.ac.uk/aeru/iupac/Reports/1596.htm |website=PPDB: Pesticide Properties DataBase |publisher=University of Hertfordshire |access-date=2020-07-29 |language=en}}
File:Empenthrin insekticid.jpgs]]{{clear left}}
