CAS number： 13182-89-3
Molecular formula： C13H15N3O5
molecular weight： 293.2753
Chemical structure：
| Name of product: | Metronidazole Benzoate | |
| Expiry Date: | 4 years | |
| ITEMS | STANDARDS | RESULTS |
| Characteristics | a white or yellowish crystalline powder | COMPLY |
| Solubility | slighting sobube in water, in acetone, in alcohol and in methylene, chloride, very slightly solube in ether | COMPLY |
| Identification | a) Melting point 159-163℃ | a) 160.6-160.7℃ |
| b) Specific absorbance 365-395 | b) 377 | |
| c) Infrared | c) COMPLY | |
| d) The solution gives the reaction of primary aromatic amines | d) COMPLY | |
| Microorganism Test | Aerobic Microorganisms( not more than 30 cfu/g), Molds and Yeasts (not more than 10 cfu/g) Pathogens: Absence | COMPLY |
| Appearance of solution | SUSPENSION Ⅱ | COMPLY |
| AND SOLUTION GY6 | ||
| Related substances | Impurity:0.1MAX | 0.02% |
| Total impurity:0.2MAX | 0.06% | |
| Disregard Limited:0.01% MAX | PASS | |
| Heavy Metal | 20PPM MAX | <20PPM |
| Loss on drying | 0.5% MAX | 0.16% |
| Particle size | 40-80mesh | COMPLY |
| Assay | 99.0%-101.0% | 99.5% |
| Conclusion: comply with the standard | ||
