CAS 78603-23-3 appears in our catalog under these names: Z-D-Lys(boc)-osu, 95%, Z-D-Lys(Boc)-OSu, 98+%, Z–D–Lys(boc)–osu, Cbz-D-Lys(Boc)-OSu, 98+%, 2,5-Dioxopyrrolidin-1-yl N2-((benzyloxy)carbonyl)-N6-(tert-butoxycarbonyl)-D-lysinate, 98+%. Offered by: Combi-blocks, AmBeed, GLPBio, Chemat, BLDpharm. Available pack sizes: 250mg, 5g, 1g, 10g.