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BENZO[B]THIOPHENE-2-CARBOXALDEHYDE Thianaphthene 6-BROMO-3-CHLORO-BENZO[B]THIOPHENE-2-CARBONYL CHLORIDE 3-CHLORO-6-METHYL-BENZO[B]THIOPHENE-2-CARBONYL CHLORIDE 3-CHLOROBENZO[B]THIOPHENE-2-CARBONYL CHLORIDE 3,4-DICHLOROBENZO[B]THIOPHENE-2-CARBONYL CHLORIDE 5-NITRO-1-BENZOTHIOPHENE-2-CARBONYL CHLORIDE 3-CHLORO-6-FLUOROBENZOTHIOPHENE-2-CARBONYL CHLORIDE Benzo[b]thiophene-2-carbonyl chloride, 4,5,6,7-tetrahydro- (9CI)