CAS 667414-31-5 appears in our catalog under these names: 2-[(Cyanoacetyl)amino]-5-isopropylthiophene-3-carboxamide, 95%, 2-(2-Cyanoacetamido)-5-isopropylthiophene-3-carboxamide, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 5g, 1g.