2379-75-1 5-Chloro-2-(5-chloro-4,7-dimethyl-3-oxobenzo(b)thien-2(3H)-ylidene)-4,7-dimethylbenzo(b)thiophene-3(2H)-one Benzo(b)thiophen-3(2H)-one, 5-chloro-2-(5-chloro-4,7-dimethyl-3-oxobenzo(b)thien-2(3H)-ylidene)-4,7-dimethyl- EINECS 219-164-1