The molecule is an organic heterotricyclic compound that is 1,2,3,5-tetrahydrocyclopenta[c]isochromene substituted by hydroxy groups at positions 7, 8 and 9, oxo groups at positions 3 and 5 and a methoxycarbonyl group at position 1. Isolated from Phyllanthus urinaria and Phyllanthus niruri, it exhibits vasorelaxant activity. It has a role as a metabolite, a vasodilator agent, an EC 5.99.1.2 (DNA topoisomerase) inhibitor, an EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor, a radical scavenger and a platelet aggregation inhibitor. It is an organic heterotricyclic compound, a delta-lactone, a member of phenols and a cyclic ketone.
methyl 7,8,9-trihydroxy-3,5-dioxo-1,2-dihydrocyclopenta[c]isochromene-1-carboxylate