CAS 351980-73-9 appears in our catalog under these names: Ethyl 2-amino-6-tert-butyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate, 95%, Ethyl 2-amino-6-(tert-butyl)-4,5,6,7-tetrahydrobenzo(b)thiophene-3-carboxylate, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.