Any member of the class of aurones in which one or more ring hydrogens are replaced by hydroxy groups.
| Member | Definition | Role |
|---|
| 3',4'-dihydroxyaurone | A hydroxyaurone that is aurone which is substituted by hydroxy groups at the 3' and 4' positions; major species at pH 7.3. It shows inhibitory activity against several isoforms of the histone deacetylase complex (HDAC). | 3',4'-dihydroxyaurone |
| aureusidin | A hydroxyaurone that is aurone substituted by hydroxy groups at positions 4, 6, 3' and 4' respectively. | aureusidin |
| hispidol | A hydroxyaurone that is aurone substituted by hydroxy groups at positions 6 and 4' respectively. | hispidol |