L-Threonine 1) GMP, Kosher, ISO 2) CAS No.:72-19- ... -101.0% 4) Quality Standard: CP2010, AJI92, USP24 High Quality L-Threonine Professional ManufacturerGMP, Kosher, ISO certificates [Molecular formula] C4H9NO3 [Molecular ... structure] [Molecular weight] 119.1192[CAS No.] 72-19-5 [Description] White crystals or ...