3β-hydroxytibolone 3β-hydroxytibolone 3β-hydroxytibolone (developmental code name org-30126) is a synthetic steroidal estrogen which was never marketed. along with 3α-hydroxytibolone and δ4-tibolone, it is a major active metabolite of tibolone, and 3α-hydroxytibolone and 3β-hydroxytibolone are thought to be responsible for the estrogenic activity of tibolone. 3β-hydroxytiboloneclinical dataother namesorg-30126; 7α-methyl-17α-ethynylestr-5(10)-ene-3β,17β-diolidentifiers iupac name (3s,7r,8r,9s,13s,14s,17r)-17-ethynyl-7,13-dimethyl-2,3,4,6,7,8,9,11,12,14,15,16-dodecahydro-1h-cyclopentaphenanthrene-3,17-diol cas number100239-45-0 ypubchem cid9839851chemspider8015569uniitep8iu9gmrchemical and physical dataformulac21h30o2molar mass314.469 g·mol−13d model (jsmol)interactive image smiles c1cc2=c(cc(c2)o)314cc(4(cc3)c)(c#c)o inchi inchi=1s/c21h30o2/c1-4-21(23)10-8-18-19-13(2)11-14-12-15(22)5-6-16(14)17(19)7-9-20(18,21)3/h1,13,15,17-19,22-23h,5-12h2,2-3h3/t13-,15+,17-,18+,19-,20+,21+/m1/s1key:yleuwnotnjzcbn-xaapqaiwsa-n