9,10-dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetrol (en)9,10-ethanoanthracene-2,3,6,7-tetrol, 9,10-dihydro-9,10-dimethyl- (en)
9,10-dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetrol (en)9,10-ethanoanthracene-2,3,6,7-tetrol, 9,10-dihydro-9,10-dimethyl- (en) ·