Bioallethrin is the ISO common name for an ectoparasiticide. It consists of two of the eight stereoisomers of allethrin in any ratio.
Esbiothrin (CAS number) is a mixture of the same two stereoisomers, but in an approximate ratio of R:S = 1:3.[1] Esbiothrin. WHO. WHO Specifications and Evaluations for Public Health Pesticides. 11f. 2014-03-23. https://web.archive.org/web/20170110194239/http://www.who.int/whopes/quality/en/Esbiothrin_spec_eval_Oct_2004.pdf. 2017-01-10. dead.
Esbioallethrin or S-bioallethrin (CAS number) is the pure S-form (that is, the wedge in the structure as shown in the box points down).[2]
The name bioallethrin was a common name approved by the British Standards Institution and published in.[3] BS 1831 has been withdrawn, and the common name has been adopted by ISO. It is also included in [4] and earlier editions.