Ethinylestradiol impurity 1
Catalog No. A99982

Ethinylestradiol impurity 1, also known as 9,11-Dehydro ethynyl estradiol, is a derivative and impurity of the synthetic estrogen Ethinylestradiol. This compound is used primarily as a reference standard in the quality control of pharmaceutical formulations containing Ethinylestradiol. Its presence can affect the overall efficacy and safety profiles of estrogen-based therapies, making it critical for analytical testing in drug development and regulatory compliance.
Chemical Information
| Catalog Num | A99982 |
|---|---|
| M. Wt | 294.39 |
| Formula | C20H22O2 |
| Purity | >98% |
| Storage | at -20 °C 3 years (powder form); at -20 °C 6 months (Solution base) |
| CAS No. | 1231-96-5 |
| Synonyms | 9,11-Dehydro ethynyl estradiol |
| SMILES | C[C@@]12[C@]([C@]3(C(=CC1)C=4C(CC3)=CC(O)=CC4)[H])(CC[C@]2(C#C)O)[H] |
Biological Activity
| Description | Ethinylestradiol impurity 1, also known as 9,11-Dehydro ethynyl estradiol, is a derivative and impurity of the synthetic estrogen Ethinylestradiol. This compound is used primarily as a reference standard in the quality control of pharmaceutical formulations containing Ethinylestradiol. Its presence can affect the overall efficacy and safety profiles of estrogen-based therapies, making it critical for analytical testing in drug development and regulatory compliance. |
|---|
RETURN POLICY
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
SHIPPING AND STORAGE
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.


