| ITEM |
Unin |
STANDARD |
| Appearance |
- |
White or almost white powder |
| Solubility |
- |
Freely soluble in water, methanol and ethanol, Slightly soluble in ethyl acetate |
| Identification |
- |
Passes test |
| Assay |
% |
98.0%–102.0% ,calculated on the anhydrous basis. |
| Specific Rotation |
- |
+84.0~+87.5° |
| Clarity of solution |
- |
--- |
| PH (10% aqueous solution) |
- |
5.0~7.0 |
| Water |
% |
≤2.0% |
| Methanol |
% |
≤0.1% |
| Ignited Residue(Sulfated ash) |
% |
≤0.7% |
| Arsenic(As) |
ppm |
≤3ppm |
| Heavy metals |
ppm |
≤10ppm |
| Lead |
ppm |
≤1ppm |
| Related substances(Other chlorinated disaccharides) |
% |
≤0.5% |
| Hydrolysis products(Chlorinated monosaccharides) |
% |
≤0.1% |
| Triphenylphosphine oxide |
ppm |
≤150ppm |
| Total aerobic count |
CFU/g |
≤250CFU/g |
| Yeast & Moulds |
CFU/g |
≤50CFU/g |
| Coliforms |
CFU/g |
Negative |
| E.coli |
CFU/g |
Negative |
| S.aureus |
CFU/g |
Negative |
| Salmonella |
CFU/g |
Negative |