The molecule is an azaphilone that is 7,8-dihydro-6H-isochromene substituted by a hydroxy group at position 7, methyl groups at positions 3 and 7 and a 3-methyl-2-oxopentyl group at position 8. It has been isolated from the culture of the mangrove endophytic fungus Penicillium chermesinum. It has a role as a Penicillium metabolite. It is an azaphilone, an enone, a member of isochromenes, a tertiary alcohol and a tertiary alpha-hydroxy ketone.
(7R,8S)-7-hydroxy-3,7-dimethyl-8-[(3S)-3-methyl-2-oxopentyl]-8H-isochromen-6-one