Synonyms: Chrysanthemumdicarboxylicacid, 1-(3-allyl-2-methyl-4-oxo-2-cyclopenten-1-yl) methyl ester (6CI);Cyclopropaneacrylic acid, 3-carboxy-a,2,2-trimethyl-, 1-methyl ester, 3-ester with2-allyl-4-hydroxy-3-methyl-2-cyclopenten-1-one (7CI,8CI);Cyclopropanecarboxylic acid, 3-(3-methoxy-2-methyl-3-oxo-1-propenyl)-2,2-dimethyl-,2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester (9CI); Allethrin II;Rethrin II; trans-(E)-Allethrin II