Organic IntermediateChina 2-Amino-5, 6-Dihydro-4h-Cyclopenta[B]Thiophene-3-Carboxamide CAS No. 77651-38-8, Find details about China 2-Amino-5 6-Dihydro-4h-Cyclopenta[B]Thio, 77651-38-8 from 2-Amino-5, 6-Dihydro-4h-Cyclopenta[B]Thiophene-3-Carboxamide CAS No. 77651-38-8