Detailed Description  Specification: Specific rotation -33.5~-35.0° Heavy metals ≤10ppm Water content ≤0.20% Residue on ignition ≤0.10% Assay  99.0~100.5% pH 5.4~6.0 Mainly uses: The key ingredient of compound amino acid transfusion Used in food  Used in the medicine The material of aspartame  Packing:  25kgs/ fiber drum.