trans-​Deltamethrin (1R,3S, a-S)


(S)-cyano(3-phenoxyphenyl)methyl (1R,3S)-3-(2,2dibromovinyl)-2,2-dimethylcyclopropanecarboxylate

  • CAS RN: 64363-96-8
  • Mol Formula: C8H10Br2O2
  • Mol Weight: 505.21

Others quantities on request

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    Deltamethrin products are among the most popular and widely used insecticides in the world. This material is a member of one of the safest classes of pesticides: synthetic pyrethroids. There are many uses for deltamethrin, ranging from agricultural uses to home pest control. Deltamethrin is a pyrethroid composed of a single stereoisomer, of a possible 8 stereoisomers, selectively prepared by the esterification of (1R,3R)- or cis-2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylic acid with (a,S)- or (+)-a-cyano-3-phenoxybenzyl alcohol or by selective recrystallization of the racemic esters obtained by esterification of the (1R,3R)- or cis-acid with the racemic or (a-R, a-S, or a-R/S)- or + or − alcohol. We have prepared Deltamethrin R-isomer (aR, 1R-cis) as well as several standards. This will be of interest to agrochemical sponsors and analytical labs.