CAS 54631-81-1 appears in our catalog under these names: Boc-Hyp(bzl)-OH, 98%, Boc–Hyp(Bzl)–OH·DCHA, Boc-L-trans-Hyp(Bzl)-OH, Boc-Hyp(Bzl)-OH, (2S,4R)-N-Boc-4-(benzyloxy)pyrrolidine-2-carboxylic Acid, 98%, 98%. Offered by: Combi-blocks, GLPBio, Iris Biotech, Biosynth, Chemat. Available pack sizes: 1g, 10g, 5g, 25g, 100g, 500g.