CAS 159631-28-4 appears in our catalog under these names: Fmoc-D-His(Boc)-OH, 97%, Fmoc–D–His(Boc)–OH, Fmoc-D-His(Boc)-OH, FMOC-D-HIS(BOC)-OH, 98%, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)-1H-imidazol-4-yl)propanoic acid, 98%. Offered by: Combi-blocks, GLPBio, Iris Biotech, Ambeed, BLDpharm. Available pack sizes: 1g, 10g, 5g, 25g, 250mg, 100mg.