The chemical Tibolone has a designated molecular formula of C21H28O2 and a molecular weight of 312.453 g/mol. Synonyms may include: EINECS 227-069-1, Tibolona [INN-Spanish], Tibolonum [INN-Latin], Xyvion, Livial, Tibolona, Tibolonum, UNII-FF9X0205V2, Liviella (ChemID). Tibolone has been assigned a MeSH pharmacological action of: Androgen Antagonist, Antineoplastic.