52820-00-5 59112-88-8 Caswell No. 463B Cyclopropanecarboxylic acid, 3-(2,2-dibromoethenyl)-2,2-dimethyl-, cyano(3-phenoxyphenyl)methyl ester EPA Pesticide Chemical Code 209400 NRDC 156 NRDC 158 NRDC 16 RU 22950 Synthetic pyrethrins alpha-Cyano-3-phenoxybenzyl-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate