InChI=1/C24H20O2/c1-23-13-3-8-20-16-6-10-22(26)18(16)12-14(24(20,23)2)4-7-19(23)15-5-9-21(25)17(15)11-13/h3-4,7-8,11-12H,5-6,9-10H2,1-2H3/t23-,24 dicyclopenta[a,h]pyrene-1,7-dione, 2,3,8,9,11b,11c-hexahydro-11b,11c-dimethyl-, (11bR,11cS)- rel-(11bR,11cS)-11b,11c-dimethyl-2,3,8,9,11b,11c-hexahydrodicyclopenta[a,h]pyrene-1,7-dione