The molecule is a naphthoquinone that is 1,4-naphthoquinone substituted by hydroxy groups at positions 2, 5, 7,and 8 and methyl groups at positions 3 and 6. It is isolated from surface cultures of Aureobasidium and acts as a protease inhibitor. It has a role as a metabolite, a protease inhibitor and an antibacterial agent. It is a member of phenols and a hydroxy-1,4-naphthoquinone.
4,5,7,8-tetrahydroxy-3,6-dimethylnaphthalene-1,2-dione