CAS 76477-42-4 appears in our catalog under these names: N-α-Boc-N-δ-Z-D-lysine, N–A–BOC–N–D–Z–D–LYSINE, Dicyclohexylamine (R)-6-(((benzyloxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)hexanoate, 98%+,RG, 98%+,RG, Boc-D-Lys(Z)-OH, 95%. Offered by: Creative Peptides, GLPBio, Chemat, Fluorochem. Available pack sizes: on request, 25g, 5g, 1g, 10g.