Status: ISO 1750 (published)
IUPAC: racemate comprising (R)-α-cyano-3-phenoxybenzyl (1S,3S)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)-α-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate or racemate comprising (R)-α-cyano-3-phenoxybenzyl (1S)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate and (S)-α-cyano-3-phenoxybenzyl (1R)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
CAS: 67375-30-8
Formula: C22H19Cl2NO3
Activity: acaricides (pyrethroid ester acaricides)
insecticides (pyrethroid ester insecticides)
Notes: The unresolved isomeric mixture of this substance has the ISO common name cypermethrin.

Alpha-Cypermethrin Structure: