| Stereochemistry | ABSOLUTE |
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.382 |
| Optical Activity | UNSPECIFIED |
| Defined Stereocenters | 5 / 5 |
| E/Z Centers | 0 |
| Charge | 0 |
SHOW SMILES / InChI
SMILES
[H][C@@]12CC[C@@H](O)[C@@]1(C)CC[C@]3([H])C4=C(CC[C@@]23[H])C=C(O)C=C4
InChI
InChIKey=VOXZDWNPVJITMN-SFFUCWETSA-N
InChI=1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17-,18+/m1/s1
Alfatradiol (17a-estradiol, Ell-Cranell® alpha) is a stereoisomer of the female hormone 17b-estradiol. It inhibits the conversion of testosterone to the metabolite dihydrotestosterone (DHT) by suppressing 5a-reductase activity. In addition, by inhibiting 17b-dehydrogenase, it impedes the conversion process of androstenedione to testosterone, resulting in a reduction in the syntheses of testosterone and DHT. It also accelerates the conversion of testosterone to estradiol by stimulating aromatase, decreasing the level of testosterone and leading to a reduction in DHT. In addition, alfatradiol (17a-estradiol) has been reported to stimulate the generation of hair follicular matrix cells.
CNS Activity
Approval Year
PubMed
Patents
Sample Use Guides
Ell-Cranell® alpha was applied once a day at 3 ml/application using a pre-dosed applicator, and the head was massaged for approximately one minute to facilitate the absorption of the drug.
Route of Administration:
Topical
ACTIVE MOIETY
