207562-36-5 3972-20-1 Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R)-2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester, (1R,3R)-rel- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, ster with 2-allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one, trans-(+-)- alpha-dl-trans-Allethrin