Homobutein (3-O-Methylbutein) is a dual inhibitor of HDACs and NF-κB with IC50s of 190 and 38 μM. Homobutein is an iron chelator with anticancer, anti-inflammatory, antiparasite, and antioxidation activities.
4-O-Methylbutein (2',3,4'-trihydroxy-4-methoxychalcone) may have anti-inflammation activity, it is a potent heme oxygenase-1 (HO-1) inducer, the upregulation of HO-1 has proven to be a useful tool for fighting inflammation.