CAS 350990-13-5 appears in our catalog under these names: Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate, 95%, Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 5g, 1g.