CAS 63076-44-8 appears in our catalog under these names: Boc-thr-osu, 97%, Boc–Thr–OSu, Boc-thr-osu, N-[(1,1-Dimethylethoxy)carbonyl]-L-threonine 2,5-dioxo-1-pyrrolidinyl ester. Offered by: Combi-blocks, GLPBio, Chemat, Fluorochem. Available pack sizes: 1g, 10g, 25g, 5g.