CAS number： 118443-89-3
Molecular formula： C23H26N6O9S3
molecular weight： 626.6823
Chemical structure：
| Product Name | Cefquinome Sulfate | |
| Shelf Life | 2 years | |
| Analysis by | In-house Specification | |
| Testing Items | Testing Specifications | Testing Results |
| Appearance | Off-white or light yellow crystalline powder | Off-white crystalline powder |
| Identification | It gives the positive reaction | Complies |
| The retention time for the main peaks of sample should correspond to the retention time for reference standard | Complies | |
| It gives the reaction of Sulfate | Complies | |
| Water | Should not more than 5.0% | 3.4% |
| pH | 1.6-2.6 | 2 |
| Clarity of Solution | Clear or not more opalescent than reference suspension I | <I |
| Color of Solution | Colorless or not more intensely colored than reference solution Y7 | <Y5 |
| Related Substances | 5,6,7,8-Tetrahydroquinoline should not more than 2.0% | 0.31% |
| Any other impurity should not more than 1.0% | 0.32% | |
| Total impurities should not more than 3.0% | 1.2% | |
| Sulfated Ash | Should not more than 0.2% | 0.02% |
| Heavy Metals | Should not more than 20ppm | Complies |
| Particle Size | 90% should less than 10μm | Complies |
