| Parent Drug Name | Name of Impurity | Catalogue No. | |
|---|---|---|---|
| Ethinylestradiol | Estriol EP Impurity B | VL2120019 | View CAS 53-16-7 |
| Ethinylestradiol | Ethinylestradiol EP Impurity A | VE006594 | View |
| Ethinylestradiol | Ethinylestradiol EP Impurity E | VE006926 | View CAS 27521-34-2 |
| Ethinylestradiol | Ethinylestradiol EP Impurity F | VE006828 | View CAS 56324-28-8 |
| Ethinylestradiol | Ethinylestradiol EP Impurity G | VE008268 | View CAS 38002-18-5 |
| Ethinylestradiol | Ethinylestradiol EP Impurity I | VE000077 | View CAS 67703-68-8 |
| Ethinylestradiol | Ethinylestradiol EP Impurity J | VE008269 | View CAS 15071-66-6 |
| Ethinylestradiol | Ethinylestradiol EP Impurity K | VE006927 | View CAS 155683-61-7 |
| Ethinylestradiol | Ethinylestradiol EP Impurity M | VE008270 | View CAS 3240-39-9 |
| Ethinylestradiol | Ethynylestradiol EP Impurity H | VL2120011 | View CAS 1350468-76-6 |
