The molecule is the aglycone of protaphin, a yellow hydroxylated quinoid pigment found in aphids. It is a member of biphenyls, a member of phenols, a benzoisochromanequinone and a member of p-quinones. It is a conjugate acid of a protoaphin aglucone(1-).
(1R,3R,4S)-4,7,9-trihydroxy-1,3-dimethyl-6-[(1R,3R,4S)-4,7,9,10-tetrahydroxy-1,3-dimethyl-3,4-dihydro-1H-benzo[g]isochromen-5-yl]-3,4-dihydro-1H-benzo[g]isochromene-5,10-dione