CAS 201290-11-1 appears in our catalog under these names: H–D–Trp(Boc)–OH, H-D-Trp(Boc)-OH, 98%, Nin-Boc-D-tryptophan, (R)-2-Amino-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)propanoic acid, 98%, H-D-Trp（Boc）-OH, 98%. Offered by: GLPBio, Combi-blocks, Biosynth, Fluorochem, Ambeed. Available pack sizes: 1g, 25g, 5g, 100g, 1000mg.