Estradiol anthranilate
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| Clinical data | |
|---|---|
| Other names | Estradiol 3-anthranilate |
| Routes of administration |
By mouth |
| Drug class | Estrogen; Estrogen ester |
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| Chemical and physical data | |
| Formula | C25H29NO3 |
| Molar mass | 391.511 g·mol−1 |
| 3D model (JSmol) | |
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Estradiol anthranilate, or estradiol 3-anthranilate, is a synthetic estrogen and estrogen ester – specifically, the C3 anthranilic acid ester of estradiol – which was described in the late 1980s and was never marketed. In dogs, the oral bioavailability of estradiol anthranilate was found to be 5-fold higher than that of unmodified estradiol. However, a subsequent study found that the oral bioavailability of estradiol and estradiol anthranilate did not differ considerably in rats (4.3% and 3.2%, respectively), suggestive of a major species difference.