Test Item | Specification |
Appearance | White to off-white powder |
Identification | HPLC RT |
Specific rotation ° | -15.5~-17.5 |
Heavy metal (Pb) (ppm) | ≤10 |
Chlorides(ppm) | ≤200 |
Sulfates (ppm) | ≤300 |
Ammonium (ppm) | ≤200 |
Iron (ppm) | ≤10 |
Residue on ignition (%) | ≤0.1 |
Loss on drying (%) | ≤0.5 |
Related substances (%) | Gross contamination≤2.0 |
GSSG≤1.5 | |
Assay (%) | 98.0-101.0 |