product name | ibuprofen | |
Item | Standard | Result |
Appearance | White or yellow crystalline powder | Conforms |
Identification | Positive | Conforms |
Absorption at 318nm | 170-190 | 185.6 |
Melting point | 158-162 | 159-160 |
Related substances(TLC) | ≤0.5% | 0.5% |
Related solvent | ≤0.5% | 0.5% |
Loss on drying | ≤0.5% | 0.07% |
Sulphated ash | ≤0.1% | 0.03% |
Heavy metals | ≤20ppm | 20ppm |
Content | 98.5-100.5% | 99.8% |