| Product name | Dexamethasone Acetate | |
| Shelf Life | 3 years | |
| Items | Standard | Results |
| Description | White or almost white crystalline powder | Almost white crystalline powder |
| Identification | IR Complies with the standard | Complies |
| UV: no more than 3.0% | 1.1% | |
| Specific Rotation | +82° to +88° | +86.9° |
| Loss on drying | not more than 0.4% | 0.2% |
| Residue on ignition | not more than 0.1% | 0.06% |
| Chromatographic purity | principal impurity no more than 1.0% | 0.34% |
| total impurities no more than 2.0% | 0.67% | |
| Residual Solvents | Acetone no more than 1000ppm | 86ppm |
| Heavy metal | Not more than 20ppm | Less than 20ppm |
| Assay | 97.0% to 102.0% on dried base | 98.7% |
| Conclusion: The test product complies with the requirements of USP39. | ||