... ,food grade,pharma grade DL-Aspartic acidMolecular formula: C4H7NO2Molecular weight: 133.10Molecular structure: CAS No.: ... [As]≤1ppmSulfate[SO42-]≤0.02%Ammonium[NH4+]≤0.02%Function: DL-aspartic acid is used in amino acid transfusion ,synthetic drugs ... with plastic inner, or according to the customer`s demand. DL-Aspartic acid