CAS 193633-60-2 appears in our catalog under these names: (R,S)-Boc-3-amino-3-(biphenyl-4-yl)-propionic acid, 95%, Boc-β-DL-Phe(4-Ph)-OH 95%, β-[[(1,1-Dimethylethoxy)carbonyl]amino][1,1'-biphenyl]-4-propanoic acid, 95%, 95%, (R,S)-Boc-3-amino-3-(biphenyl-4-yl)-propionic acid, 97%. Offered by: Combi-blocks, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 5g, 1g.