Similar names: Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-; Cyclopropanecarboxylic acid, 3-(2,2-dichlorovinyl)-2,2-dimethyl- (6CI); 2,2-Dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid; 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic acid; 3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid; 3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropylcarboxylic acid; DV-chrysanthemic acid; Permethric acid; Permethrinic acid