Bioallethrin
insecticide trademark

Bioallethrin is an ectoparasiticide. It consists of two of the eight stereoisomers of allethrin in any ratio.
Esbiothrin is a mixture of the same two stereoisomers, but in an approximate ratio of R:S = 1:3.
Esbioallethrin or S-bioallethrin is the pure S-form (that is, the wedge in the structure as shown in the box points down).
The name bioallethrin was a common name approved by the British Standards Institution and published in. BS 1831 has been withdrawn, and the common name has been adopted by ISO. It is also included in and earlier editions.
“Bioallethrin” enters the record as insecticide trademark. Crown Archives preserves that source wording while asking what Bioallethrin, insecticide and trademark can confirm, complicate or overturn.
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“Bioallethrin” is worth following because a concise public description often conceals a longer documentary argument. Here, Bioallethrin, insecticide and trademark provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 25, 2025. The linked authority identifier is Q2102184. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1831.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Bioallethrin” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.