L-Threonine is used mainly in premixtures and pig feed, but also in poultry feed. it is the second limiting amino acid for pigs after Lysine and improves zootechnical performance and reduces nitrogen waste. CAS No. 72-19-5 Synonyms:2-Amino-3-HydroxybutyricacidMolecular Formula:C4H9NO3 Molecular weight:119.12 Method of production: Produced by microbial fermentation. Packing:25kg/bag、750kg/bag、1,000kg/bag. ItemsRequirementsAppearanceWhite or sandy beige crystal powder, no obvious puritySpecific rotation,,°-25.0~-29.0IdentificationCorresponds to standardAcidity or alkalinity4.5~6.5Loss on drying,%≤0.5Residue on ignition,%≤0.5Heavy metals(Pb),%≤0.003Arsenic (As),%≤0.0002Assay,%≥98.5 |