湖北瑞诺医药---专注杂质对照品、标准品：
| Betamethasone | 378-44-9 |
| Betamethasone EP Impurity A | 50-02-2 |
| Betamethasone Impurity 1 | 154713-07-2 |
| Betamethasone Impurity 2 | 2802-10-0 |
| Betamethasone Impurity 3 | 52647-07-1 |
| Betamethasone Impurity 4 | 37926-75-3 |
| Betamethasone Impurity 5 | 3109-01-1 |
| Betamethasone Impurity 6 | 25122-41-2 |
| Betamethasone Impurity 7 | 13504-15-9 |
| Betamethasone Impurity 8 | 52619-05-3 |
| Betamethasone Impurity 9 | 981-34-0 |
| Betamethasone Impurity 10 | 330157-04-5 |
| Betamethasone Impurity 11 | 85700-75-0 |
| Betamethasone Impurity 12 | 185613-71-2 |
| Betamethasone Impurity 13 | 185613-69-8 |
| Betamethasone Impurity 14 | 18383-24-9 |
| Betamethasone Impurity 15 | 52647-06-0 |
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