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%0.24%Ash≤ 0.5%0.09%Assay≥98.5%98.50%Specific Rotation-26.7°~29.6°-27.50°Granular Particle Size ...