CAS number: 13182-89-3
Molecular formula:
molecular weight:
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 |