L-Threonine, Feed Grade, Assay: 98.5%min, CAS NO: 72- ... -5, Appearance: White or light-brown granules, Packing: 25KG / BAG L-Threonine, Feed Grade, 98.5%minCAS NO: 72-19-5Certificate ... ≥98.5%98.50%Specific Rotation-26.7°~29.6°-27.50°Granular Particle Size Distribution20~50mesh 70%min78.50 ...