5,7-dichloro-4-methyl-3-thianaphthenone

5,7-dichloro-4-methyl-benzothiophen-3-one

5,7-dichloro-4-methyl-1-benzothiophen-3-one

5,7-Dichloro-4-methylbenzo[b]thiophen-3(2H)-one

5,7-dichloro-4-methylbenzo[b]thiophene-3(2H)-one