CAS 89813-47-8 appears in our catalog under these names: Boc-Hyp-OBzl, 96%, Boc–Hyp–OBzl, N-Boc-trans-4-hydroxy-L-proline benzyl ester, 95% , Boc-Hyp-OBzl 98%, (2S,4R)-2-Benzyl 1-tert-butyl 4-hydroxypyrrolidine-1,2-dicarboxylate, 98%, 98%. Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar), Ambeed, Chemat. Available pack sizes: 1g, 25g, 5g, 250mg, 100mg.