CAS 5331-42-0 appears in our catalog under these names: 2-Cyano-3-phenylpropionic acid, 97%, 2-Cyano-3-phenylpropionic Acid, 98%, 2-Cyano-3-phenylpropionic acid, >97%. Offered by: Combi-blocks, Ambeed, Fluorochem, BLDpharm. Available pack sizes: 250mg, 5g, 1g, 10g.