IUPAC name
(RS)-3-allyl-2-methyl-4-oxocyclopent-2-enyl (1R,3R)-2,2-dimethyl -3-(2-methylprop-1-enyl)cyclopropanecarboxylate
3D model (Jmol) Interactive image
Interactive image
ChEBI CHEBI:39118 YesY
ChemSpider 18923353 YesY
PubChem 11442
UNII G79DM7O471 YesY
Molar mass 302.40794
P03AC02 (WHO) QP53AC02 (WHO)
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

Bioallethrin is a brand name for an ectoparasiticide. It consists of two of the eight stereosiomers of allethrin I in an approximate ratio of 1:1.[1][2] The name Bioallethrin is a registered trademark of Sumitomo Chemical Co., Ltd.[3]

Esbiothrin (CAS number 260359-57-5 ) is a mixture of the same two stereosiomers, but in an approximate ratio of R:S = 1:3.[2]

Esbioallethrin or S-bioallethrin (CAS number 28434-00-6 ) is the pure S-form (that is, the wedge in the structure as shown in the box points down).[4]


  1. "Bioallethrin data sheet". Compendium of Pesticide Common Names. Alan Wood. Retrieved 2010-06-29.
  2. 1 2 "Esbiothrin" (PDF). WHO specifications and evaluations for public health pesticides. WHO: 11f.
  3. Trademark Status and Document Retrieval: Bioallethrin
  4. ChemIdplus: S-Bioallethrin

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