16,17-Dihydroxydinaphtho(1,2,3-cd:3',2',1'-lm)perylene-5,10-dione, diheptanoate 5,10-Dihydro-5,10-dioxoanthra(9,1,2-cde)benzo(rst)pentaphene-16,17-diyl bisheptanoate 71550-34-0 85369-04-6 EINECS 275-607-9 Heptanoic acid, 5,10-dihydro-5,10-dioxoanthra(9,1,2-cde)benzo(rst)pentaphene-16,17-diyl ester