CAS 55592-85-3 appears in our catalog under these names: Z–DL–Lys(Z)–OH, Z-DL-Lys(Z)-OH, Cbz-DL-Lys(Cbz)-OH 97%, 2,6-Bis(((benzyloxy)carbonyl)amino)hexanoic acid, 97%, 97%, 2,6-Bis(((benzyloxy)carbonyl)amino)hexanoic acid, 97%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 25g, 5g, 50g, 100g, 250g, 1g, 10g.