Complaint
Item | Specification |
Appearance | White or almost white crystal powder |
Identification | HPLC: The retention time obtained from the test solution corresponding to that obtained from the standard solution |
IR: IR of the sample corresponding to that reference standard | |
Color and clarity of solution | The solution should be clear and colorless, and the absorbance at 400nm and 650nm are not greater than 0.150 and 0.030 |
Specific rotation | +24~28° |
PH | 3.1~4.1 |
Loss on drying | ≤ 0.5% |
Melting point | 143~149°C |
Fumarate content | 83.7~87.3mg |
Residue on ignition | ≤ 0.1% |
Heavy metals | ≤ 0.001% |
Solvent residue | ≤ 0.5% |
Chromatographic purity | Any identified impurity ≤ 1.0% |
Any unidentified impurity ≤ 0.5% | |
Total impurities≤ 2.0% | |
Assay (on dried basis) | 98.0~102.0% |
Hebei Fengqiang Trading Co.,ltd. is a high-tech enterprise engaged in the field of fine chemical products, integrating R&D, production and sales. The company has an independent R & D team, which can develop and customize any pharmaceutical raw materials with low price, high quality and first-class service! Fengqiang's products are widely exported to the United States, Russia, Canada, Australia, Europe and many other countries with double-clearance door-to-door delivery services. With honest and credible business philosophy. Harmonious development!
