CAS 515861-07-1 appears in our catalog under these names: Ethyl 2-[(cyanoacetyl)amino]-5-isopropylthiophene-3-carboxylate, 95%, Ethyl 2-(2-cyanoacetamido)-5-isopropylthiophene-3-carboxylate, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.