L-Threonine, Feed Grade, Amino Acid, Assay: 98.5%min, CAS NO: 72-19-5, Appearance: White or light-brown granules, L-Threonine/ Feed ... Grade/ Amino Acid, 98.5%minCAS NO: 72-19-5 ... , Certificate of analysis:ItemStandard( Feed Grade )Test ResultAppearanceWhite or light-brown granulesWhite granulesMoisture≤ 0.5%0 ...