2-(4-(4'-Chlorophenoxy)-phenoxy)isobutylpropionate 51337-71-4 Alopex BRN 2164006 Clofop Clofop-isobutyl Hoe22870 Isobutyl 2-(4-(4-chlorophenoxy)phenoxy)propionate NSC 321036 Propanoic acid, 2-(4-(4-chlorophenoxy)phenoxy)-, 2-methylpropyl ester (9CI) Propionic acid, 2-(4-(4'-chlorophenoxy)phenoxy)-, isobutyl ester