Chrysoobtusin belongs to the class of organic compounds known as hydroxyanthraquinones.

Lucidin ω-ethyl ether (compound 17) is an anthraquinone metabolite isolated from the root part of Prismatomeris filamentosa with some antibacterial activity against Gram-positive and Gram-negative bacteria.

D-F07 is a novel fluorescent IRE-1 RNase inhibitor and a tricyclic chromone with potential anticancer activity.