Test Items

Standard

Appearance ：

Identification ：

Specific rotation:

pH:

Loss on drying:

Residue on ignition:

Chloride:

Sulfate:

Iron:

Heavy metals:

Chromatographic purity:

Assay:

White crystal or crystalline powder

As per USP28

+12.6° to +14.0°

7.0 to 8.5

≤0.2%

≤0.4%

≤0.05%

≤0.03%

≤0.003%

≤0.0015%

As per USP28

98.5% to 101.5%