CAS 438532-76-4 appears in our catalog under these names: Propyl 2-amino-5-[(dimethylamino)carbonyl]-4-methylthiophene-3-carboxylate, 95%, Propyl 2-amino-5-(dimethylcarbamoyl)-4-methylthiophene-3-carboxylate, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 5g, 1g.