1.0 2026-09-21 23:26:58 UTC 2026-09-21 23:26:58 UTC FDB117281 Alizarin 1,2-dihydroxyanthracene-9,10-dione C14H8O4 240.214 240.042258738 1,2-dihydroxy-9,10-dihydroanthracene-9,10-dione alizarin OC1=C(O)C2=C(C=C1)C(=O)C1=CC=CC=C1C2=O InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H RGCKGOZRHPZPFP-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 a small molecule dihydroxyanthraquinone logp 3.03 ALOGPS logs -2.95 ALOGPS solubility 2.72e-01 g/l ALOGPS logp 2.96 ChemAxon pka_strongest_acidic 7.5 ChemAxon pka_strongest_basic -6 ChemAxon iupac 1,2-dihydroxy-9,10-dihydroanthracene-9,10-dione ChemAxon average_mass 240.214 ChemAxon mono_mass 240.042258738 ChemAxon smiles OC1=C(O)C2=C(C=C1)C(=O)C1=CC=CC=C1C2=O ChemAxon formula C14H8O4 ChemAxon inchi InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H ChemAxon inchikey RGCKGOZRHPZPFP-UHFFFAOYSA-N ChemAxon polar_surface_area 74.6 ChemAxon refractivity 65.11 ChemAxon polarizability 23.33 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 49398 Specdb::MsMs 49399 Specdb::MsMs 49400 Specdb::MsMs 162240 Specdb::MsMs 162241 Specdb::MsMs 162242 Specdb::MsMs 2227102 Specdb::MsMs 2227580 Specdb::MsMs 2229463 Specdb::MsMs 2230031 Specdb::MsMs 2231899 Specdb::MsMs 2232287 Specdb::MsMs 2232920 Specdb::MsMs 2234624 Specdb::MsMs 3414368 Specdb::MsMs 3414369 Specdb::MsMs 3414370 Specdb::MsMs 3415451 Specdb::MsMs 3415452 Specdb::MsMs 3415453 Specdb::CMs 114932 Specdb::CMs 129129 Specdb::CMs 839512 Specdb::CMs 839513 Specdb::CMs 839514 Specdb::CMs 839515 Specdb::CMs 839516 Specdb::CMs 839517