CAS number： 50-23-7
Molecular formula： C21H30O5
molecular weight： 362.4599
Chemical structure：
| Product | HYDROCORTISONE BASE | |
| Shelf Life | 3 years | |
| ITEM | SPECIFICATION | RESULT |
| CHARACTER | WHITE TO ALMOST WHITE CRYSTALLINE POWDER | ALMOST WHITE CRYSTALLINE POWDER |
| IDENTIFICATION | （A）COMPLIES BY IR | CONFORMS |
| （B）UV:△E/EES≤2.5% | 0.2% | |
| TEST | ||
| SPECIFIC ROTATION | +150° TO +156° | +153.0° |
| LOSS ON DRYING | ≤1.0% | 0.3% |
| RESIDUE ON IGNITION | ≤0.5% | 0.1% |
| RELATED SUBSTANCES | INDIVIDUAL IMPURITY ≤0.5% | 0.28% |
| TOTAL IMPURITIES ≤2.0% | 0.09% | |
| RESIDUAL SOLVENT | CYCLOHEXANE ≤3880ppm | 2PPM |
| METHANOL≤3000PPM | 82PPM | |
| ASSAY | CONTAINS 97.0% TO 102.0% OF C21H30O5 CALCULATED ON DRIED BASIS | 100.1% |
| CONCLUSION: | THE PRODUCT CONFORMS TO USP38 AND CUSTOMER STANDARD. | |
