4-bromo-3-prop-2-enoxyxanthen-9-one

4-bromo-3-hydroxy-2-prop-2-enylxanthen-9-one

[4-bromo-2-(2,3-dibromopropyl)-9-oxoxanthen-3-yl] acetate

11-bromo-2-methylfuro[3,2-b]xanthen-5-one

11-bromofuro[3,2-b]xanthen-5-one