英文别名4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic acid; 2-Carboxy-4,5,6,7-tetrahydrobenzo[b]thiophene; 2-Carboxy-4,5,6,7-tetrahydro-1-benzothiophene; Benzo[b]thiophene-2-carboxylic acid, 4,5,6,7-tetrahydro-; 4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylate