cis-(±)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid Chrysanthemic acid DL-cis-form cis-(1)-2,2-Dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylicacid Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-, (1R,3S)-rel- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R,3S)-rel- Einecs 220-908-2 dl-cis-Form cis-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylic acid