中文
Primidone
CAS Number: 125-33-7
Molecular Formula: C12H14N2O2
Standard: USP32/EP6
Package: 25kg/drum
Primidone
CAS Number: 125-33-7
Molecular Formula: C12H14N2O2
Standard: USP32/EP6
Package: 25kg/drum
| Items | Specifications(EP) | Specifications(USP) |
| Characteristics | White or almost white crystalline powder | White crystalline powder,odourless |
| Identification | A.UV(≥2.0) | A.IR |
| B.IR | B.UV (≤3.0%) | |
| C.D.chemical test | C.Chemical test | |
| Water solution | A257≤0.35 | |
| Melting point | 279 to 284 | |
| Heavy metals | ≤0.001% | |
| Loss on drying | ≤0.5% | ≤0.5% |
| Residue on ignition | ≤0.2% | |
| Sulfated ash | ≤0.1% | |
| Ordinary impurities | ≤2% | |
| Organic volatile impurities | Complies | |
| Residual solvents | ||
| Methanol | ≤0.3% | ≤0.3% |
| Ethanol | ≤0.5% | ≤0.5% |
| Ethyl acetate | ≤0.5% | ≤0.5% |
| Assay(on the dried basis) | 98.0 to 102.0% | 98.0 to 102.0% |