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