Molecular Formula: C
18H
24O
3 Molecular Weight: 288.38136
InChIKey: PROQIPRRNZUXQM-ZXXIGWHRSA-N
A hydroxylated metabolite of ESTRADIOL or ESTRONE that has a hydroxyl group at C3-beta, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen. During PREGNANCY, large amount of estriol is produced by the PLACENTA. Isomers with inversion of the hydroxyl group or groups are called epiestriol.
From: MeSH