L - thréonine CAS 72 - 19 - 5

Product name: L-Threonine Molecular Formula: C4H9NO3 Molecular Weight: 119.12 CAS No.: 72-19-5 Description L-Threonine occurs as a white, crystalline powder. It is freely soluble in water, and insoluble in alcohol, in ether, and in chloroform. It melts with decomposition at about 256°. Application L-threonine is mainly used for amino acid infusion, comprehensive amino acid preparation, food nutrition enhancer Specification Appearance White or almost white crystalline powder or colorless crystals Appearance of solution Clear and colorless PH 5.0-6.5 Specific rotation -27.6°~ -29.0° Ninhydrin-positive substances Any impurity ≤ 0.5% Chloride ≤0.02% Sulfate ≤0.03% Ammonium ≤0.02% Iron ≤ 10ppm Heavy metals ≤ 10ppm Lead ≤ 5ppm Loss on drying ≤0.5% Residue on ignition ≤0.1% Assay 99.0~101.0% Packing 25kg/drum or as per requirement. Storage Store in a cool dry place and protected from light.