Payment: T/T, L/C Product Origin: China Shipping Port: Beijing/Shanghai/Hangzhou Production capacity: 50kg/month Order(MOQ): 25kg Lead Time: 3 Working Days Storage condition: Stored in cool, dry place, room temperature. Package material: drum Package size: 25kg/drum Safety information: Not dangerous goods| Item | Specification |
| Appearance | White or slightly brown or yellow powder |
| Solubility | Slightly soluble in water Freely soluble in anhydrous ethanol Practically insoluble in heptanes. |
| Identification | Test A: By Infrared absorption spectrophotometry |
| Test B: the retention time of the major peak of the sample solution corresponds to that of the standard solution. | |
| Test C: by chloride test | |
| Organic impurities | 7-Methyl vardenafil: ≤0.15% |
| Vardenafil acid: ≤0.10% | |
| Vardenafil dimer: ≤0.10% | |
| Any unspecific impurities: ≤0.10% | |
| Total impurities: ≤0.30% | |
| Water | 8.8%-10.5% |
| Residue on ignition | ≤0.10% |
| Assay by HPLC | 98.0% to 102.0% (anhydrous basis) |