CAS number： 50-33-9
Molecular formula： C19H20N2O2
molecular weight： 308.38
Chemical structure：
| Product Name: | PHENYLBUTAZON | ||
| Expiry Date: | 4 years | ||
| Test | Specifications | Results | |
| EP4 | USP31 | ||
| Characters | A white or almost white,crystalline powder | COMPLIES | |
| Identification | B.UV C.IR | A.IR B.UV | COMPLIES |
| D.Chemical Test | |||
| UV spectrum | A(1%,25px)Maxirnum(650-700)at 264nm | COMPLIES | |
| IR absorption | Same bands the standard | COMPLIES | |
| Melting range | 104～107℃ | 104℃-107℃ | |
| Solubility | Freely soluble in acetone,chloroform and Benzene,soluble in alcohol and aether, insoluble in water. | COMPLIES | |
| Chemical reaction | Complies | COMPLIES | |
| Appearance of solution | Clear | COMPLIES | |
| Acidity or Alkalinity | COMPLIES | ||
| Acidity | ≤0.5ml NaOH/g | COMPLIES | |
| Alkalinity | ≤0.6ml HCl/g | COMPLIES | |
| Absorbance | 420nm,≤0.20 | 0.085 | |
| Related substances | ≤0.5% | COMPLIES | |
| Heavy metals | ≤20ppm | ≤0.001% | COMPLIES |
| Loss on drying | ≤0.2% | ≤0.5% | 0.05% |
| Sulphated ash | ≤0.1% | 0.05% | |
| Residue on ignition | ≤0.1% | 0.05% | |
| Chloride | ≤0.007% | COMPLIES | |
| Sulphate | ≤0.01% | COMPLIES | |
| Residual solvents | Methanol≤0.3% | N.D | |
| Ethanol≤0.5% | COMPLIES | ||
| Organic volatile impurities | Complies | COMPLIES | |
| Assay | 99.0～101.0% | 98.0～102.0% | 99.77% |
| Storage | Store Protected From Light and Airtight-Not Exceeding 25℃ | ||
| Conclusion | The product meets the requirements of EP4/USP31 | ||
