The molecule is a benzochromenone that is beta-lapachone in which one of the hydrogens attached to the carbon adjacent to that bearing the gem-dimethyls is replaced by a bromine. It is a benzochromenone, an organobromine compound and a member of orthoquinones.
3-bromo-2,2-dimethyl-3,4-dihydrobenzo[h]chromene-5,6-dione