Estriol |
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| 16,17-Epiestriol; 16-Epiestriol; 16-Hydroxyestradiol; 16-alpha-Hydroxy-Estradiol; 17-Epiestriol; Epiestriol; Ovestin; 16 Epiestriol; 16 Hydroxyestradiol; 16 alpha Hydroxy Estradiol; 16,17 Epiestriol; 17 Epiestriol | |
| 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. | |