Synonyms: Chrysanthemummonocarboxylicacid, 2-methyl-4-oxo-3-(1,3-pentadienyl)-2-cyclopenten-1-yl ester (6CI);Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-,2-methyl-4-oxo-3-(1,3-pentadienyl)-2-cyclopenten-1-yl ester (9CI);Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methylpropenyl)-, ester with4-hydroxy-3-methyl-2-(1,3-pentadienyl)-2-cyclopenten-1-one (7CI,8CI);Isopyrethrin I