The molecule is a member of the class of 8,8'-bicoumarins that is kotanin in which the methoxy groups at the 7 and 7' positions are replaced by hydroxy groups. A fungal metabolite, its isolation from Aspergillus niger was first reported in 1979. It has a role as an Aspergillus metabolite. It is a conjugate acid of an orlandin(1-).
7-hydroxy-8-(7-hydroxy-4-methoxy-5-methyl-2-oxochromen-8-yl)-4-methoxy-5-methylchromen-2-one