41219-31-2 6-Chloro-4-thiochromanyl-O,O-diethyl dithiophosphate Phosphorodithioic acid, S-(6-chloro-3,4-dihydro-2H-1-benzothiopyran-4-yl) O,O-diethyl ester S-(6-Chloro-3,4-dihydro-2H-1-benzothiopyran-4-yl) O,O-diethyl phosphorodithioate