CAS 268542-15-0 appears in our catalog under these names: Boc-(r,s)-3-amino-3-(2-naphthyl)-propionic acid, 95%, 3-((tert-Butoxycarbonyl)amino)-3-(naphthalen-2-yl)propanoic acid, 98%, 98%, Boc-(R,S)-3-amino-3-(2-naphthyl)propionic acid, 98%, Boc-β-DL-2-Nal-OH, 95%. Offered by: Combi-blocks, Chemat, Fluorochem, Ambeed. Available pack sizes: 1g, 5g, 100mg, 250mg, 25g.