CAS 17093-74-2 appears in our catalog under these names: (2S,3R)-2-Acetamido-3-hydroxybutanoic acid, 95%, Ac-thr-oh, 97%, Acetyl-L-threonine, >95% (HPLC), Ac–Thr–OH, Acetyl-L-threonine. Offered by: Fluorochem, BLDpharm, Chemat, Combi-blocks, TRC. Available pack sizes: 5g, 250mg, 1g, 100mg, 10g, 25g, 50g, 500mg.