CAS 350996-94-0 appears in our catalog under these names: Methyl 2-amino-5-(aminocarbonyl)-4-methylthiophene-3-carboxylate, 95%, Methyl 2-amino-5-carbamoyl-4-methylthiophene-3-carboxylate, 95+%, 2-Amino-5-carbamoyl-4-methyl-thiophene-3-carboxylic acid methyl ester. Offered by: Combi-blocks, AmBeed, Fluorochem. Available pack sizes: 250mg, 5g, 1g.