CAS 19647-68-8 appears in our catalog under these names: (S)–Benzyl (3–hydroxy–1–(methylamino)–1–oxopropan–2–yl)carbamate, Cbz-Ser-NHMe 95%, (S)-Benzyl 3-Hydroxy-1-(methylamino)-1-oxopropan-2-ylcarbamate, 95%, 95%, (S)-Benzyl 3-Hydroxy-1-(methylamino)-1-oxopropan-2-ylcarbamate, ≥95%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 10g, 1g, 250mg, 5g.