The molecule is an organic heterotricyclic compound that is 1H,10H-pyrano[4,3-b]chromene substituted by hydroxy groups at positions 7 and 8, a methoxy group at position 1, a methyl group at position 3 and an oxo group at position 10. Isolated from Chaetomium funicola, it exhibits inhibitory activity against metallo-beta-lactamases. It has a role as a Chaetomium metabolite and an EC 3.5.2.6 (beta-lactamase) inhibitor. It is a member of catechols, a cyclic ether, a cyclic ketone, a monocarboxylic acid and an organic heterotricyclic compound.
7,8-dihydroxy-1-methoxy-3-methyl-10-oxo-1H-pyrano[4,3-b]chromene-9-carboxylic acid