1.0 2026-09-21 14:05:12 UTC 2026-09-21 14:05:12 UTC FDB116557 Rubiadin 1,3-dihydroxy-2-methyl-anthracene-9,10-dione 1,3-dihydroxy-2-methylanthracene-9,10-dione C15H10O4 254.241 254.057908802 1,3-dihydroxy-2-methyl-9,10-dihydroanthracene-9,10-dione rubiadin CC1=C(O)C=C2C(=O)C3=CC=CC=C3C(=O)C2=C1O InChI=1S/C15H10O4/c1-7-11(16)6-10-12(13(7)17)15(19)9-5-3-2-4-8(9)14(10)18/h2-6,16-17H,1H3 IRZTUXPRIUZXMP-UHFFFAOYSA-N belongs to the class of organic compounds known as hydroxyanthraquinones. Hydroxyanthraquinones are compounds containing a hydroxyanthraquinone moiety, which consists of an anthracene bearing a quinone, and hydroxyl group. Hydroxyanthraquinones Organic compounds Benzenoids Anthracenes Anthraquinones Aromatic homopolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids Aryl ketones Hydrocarbon derivatives Organic oxides Vinylogous acids 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid Aromatic homopolycyclic compound Aryl ketone Hydrocarbon derivative Hydroxyanthraquinone Ketone Organic oxide Organic oxygen compound Organooxygen compound Vinylogous acid Anthraquinone type dihydroxyanthraquinone logp 3.08 ALOGPS logs -3.23 ALOGPS solubility 1.48e-01 g/l ALOGPS logp 3.47 ChemAxon pka_strongest_acidic 7.81 ChemAxon pka_strongest_basic -5.3 ChemAxon iupac 1,3-dihydroxy-2-methyl-9,10-dihydroanthracene-9,10-dione ChemAxon average_mass 254.241 ChemAxon mono_mass 254.057908802 ChemAxon smiles CC1=C(O)C=C2C(=O)C3=CC=CC=C3C(=O)C2=C1O ChemAxon formula C15H10O4 ChemAxon inchi InChI=1S/C15H10O4/c1-7-11(16)6-10-12(13(7)17)15(19)9-5-3-2-4-8(9)14(10)18/h2-6,16-17H,1H3 ChemAxon inchikey IRZTUXPRIUZXMP-UHFFFAOYSA-N ChemAxon polar_surface_area 74.6 ChemAxon refractivity 70.15 ChemAxon polarizability 25.54 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 115266 Specdb::CMs 129574 Specdb::CMs 966850 Specdb::CMs 966851 Specdb::CMs 966852 Specdb::CMs 966853 Specdb::CMs 966854 Specdb::CMs 966855 Specdb::MsMs 2238691 Specdb::MsMs 2238902 Specdb::MsMs 2240793 Specdb::MsMs 2240890 Specdb::MsMs 2242915 Specdb::MsMs 2242947