42534-61-2 Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R)-2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester. (1S.3S)-rel- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester, (1-alpha(S*),3-beta)-(+-)- D-Allethrin MGK allethrin concentrate d-cis,trans-Allethrin