Synonyms: 2-Thioureido-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid ethyl ester;benzo[b]thiophene-3-carboxylic acid, 2-[(aminothioxomethyl)amino]-4,5,6,7-tetrahydro-, ethyl ester;ethyl 2-(carbamothioylamino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate