1 RHN 4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid 1.000 2 91L 1-amino-4-hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid 0.909 3 EMO 3-methyl-1,6,8-trihydroxyanthraquinone 0.864 4 HG6 4-chloranyl-9,10-bis(oxidanylidene)anthracene-2-carboxylic acid 0.864 5 CHZ 1,8-dihydroxyanthracene-9,10-dione 0.857 6 AQC 9,10-dioxo-9,10-dihydroanthracene-2-carboxamide 0.818 7 QOI 1,3,8-tris(oxidanyl)anthracene-9,10-dione 0.818 8 3O7 1,4,5,8-tetrahydroxyanthracene-9,10-dione 0.783 9 QPO 3-methoxy-1,8-bis(oxidanyl)anthracene-9,10-dione 0.783 10 TXQ 1,2,5,8-tetrahydroxyanthracene-9,10-dione 0.783 11 9TA 1,4-bis-[2-(2-hydroxy-ethylamino)-ethylamino]-anthraquinone 0.762 12 HNA 1,8-di-hydroxy-4-nitro-anthraquinone 0.750 13 9TF Purpurin 0.739 14 HH9 4-chloranyl-9-oxidanylidene-xanthene-2-carboxylic acid 0.739 15 J5R 8-chloranyl-9-oxidanylidene-xanthene-3-carboxylic acid 0.739 16 OAL (1,8-dihydroxy-9,10-dioxo-9,10-dihydro-anthracen-2-yl)-acetic acid 0.720 17 ANF Anthrone 0.714 18 MNY 5,8-di-amino-1,4-dihydroxy-anthraquinone 0.708 19 QPF 1-methoxy-3,8-bis(oxidanyl)anthracene-9,10-dione 0.708