Complaint
| 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% |
