2-Chloro-1-(2,5-dichlorophenyl)vinyl diethyl phosphate 2701-86-2 Diethyl 1-(2,5-dichlorophenyl)-2-chlorovinyl phosphate GC 3583 NSC14036 Phosphoric acid, 2-chloro-1-(2,5-dichlorophenyl)ethenyl diethyl ester Phosphoric acid, 2-chloro-1-(2,5-dichlorophenyl)vinyl diethyl ester SD 8210