Description:White or white crystal powder
Identification: A: IR
                      B: UV
Loss on drying: ≤0.5%
Residue on ignition:  ≤0.2%
Related compounds: 
        Individual compounds:≤0.25%
        The sum of compounds:≤0.5%
Residual solvents:
        Acetone≤0.5%
        Ethanol≤0.5%
Microorganism:  
TPC<1000cfu/g
Y and M<100cfu/g
E-coli-absent
Staphylococcus Aureus-absent
Albicans Saccharomyces-absent
Assay:98.0%－102.0％
Calculated on dricd basis