CAS 351983-32-9 appears in our catalog under these names: Isopropyl 2-amino-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophene-3-carboxylate, 95%, Isopropyl 2-amino-5,6,7,8-tetrahydro-4H-cyclohepta(b)thiophene-3-carboxylate, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 5g, 1g.