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Estriol MeSH Descriptor Data 2026


MeSH Heading
Estriol
Tree Number(s)
D04.210.500.365.415.331
D06.472.334.851.437.750
Unique ID
D004964
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D004964
Scope Note
A hydroxylated metabolite of ESTRADIOL or ESTRONE that has a hydroxyl group at C3, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen. During PREGNANCY, a large amount of estriol is produced by the PLACENTA. Isomers with inversion of the hydroxyl group or groups are called epiestriol.
Entry Term(s)
(16alpha,17beta)-Estra-1,3,5(10)-Triene-3,16,17-Triol
(16beta,17beta)-Estra-1,3,5(10)-Triene-3,16,17-Triol
16-alpha-Hydroxy-Estradiol
16alpha,17beta-Estriol
16beta-Hydroxy-Estradiol
Epiestriol
Estra-1,3,5(10)-Triene-3,16beta,17beta-Triol
Ovestin
Registry Numbers
FB33469R8E
0
8XZ32LI44K
Related Numbers
50-27-1
8XZ32LI44K
CAS Type 1 Name
Estra-1,3,5(10)-triene-3,16,17-triol, (16alpha,17beta)-
NLM Classification #
WP 522
Date Introduced
1966/01/01
Last Updated
2016/05/31
Estriol Preferred
Ovestin Narrower
Epiestriol Related
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