CAS 2458-78-8 appears in our catalog under these names: Acetyl-l-threonine methyl ester, 95%, Acetyl-l-threonine Methyl Ester, Ac–Thr–OMe, Ac-Thr-OMe 97%, Acetyl-L-threonine Methyl ester, 97%, 97%. Offered by: Combi-blocks, TRC, GLPBio, Ambeed, Chemat. Available pack sizes: 250mg, 5g, 1g, 100mg.