CAS 76880-29-0 appears in our catalog under these names: Boc-cys(npys)-oh, 95%, Boc–Cys(NPys)–OH, Boc-L-Cys(Npys)-OH, Boc-cys(Npys)-oh, Boc-Cys(Npys)-OH 98%. Offered by: Combi-blocks, GLPBio, Iris Biotech, Biosynth, Ambeed. Available pack sizes: 250mg, 1g, 100mg, 5g, 25g, 500mg, 1000mg, 2000mg.