4-Hydroxyestriol
| Names | |
|---|---|
| IUPAC name Estra-1,3,5(10)-triene-3,4,16α,17β-tetrol | |
| Systematic IUPAC name (1R,2R,3aS,3bR,9bS,11aS)-11a-Methyl-2,3,3a,3b,4,5,9b,10,11,11a-decahydro-1H-cyclopenta[a]phenanthrene-1,2,6,7-tetrol | |
| Identifiers | |
| 3D model (JSmol) | |
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| UNII | |
| CompTox Dashboard (EPA) | |
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| Properties | |
| C18H24O4 | |
| Molar mass | 304.386 g·mol−1 | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
4-Hydroxyestriol, also known as estra-1,3,5(10)-triene-3,4,16α,17β-tetrol, is an endogenous catechol estrogen and metabolite of estriol. It has been found in pregnancy urine.