The molecule is a phenolate anion that is the dianion of cladofulvin, obtained from the deprotonation of the 6 and 7'-hydroxy groups. Major species at pH 7.3. It is a conjugate base of a cladofulvin.
7-(4,5-dihydroxy-2-methyl-6-oxido-9,10-dioxoanthracen-1-yl)-1,8-dihydroxy-6-methyl-9,10-dioxoanthracen-2-olate