1.0 2010-04-08 22:09:44 UTC 2019-11-26 03:05:07 UTC FDB011604 Gomphidic acid Pigment from the lichen Gomphidius glutinosus (spike cap). Gomphidic acid is found in mushrooms. 4-Hydroxy-a-[3-hydroxy-5-oxo-4-(3,4,5-trihydroxyphenyl)-2(5H)-furanylidene]benzeneacetic acid, 9CI C18H12O9 372.2825 372.048131982 2-[(2Z)-3-hydroxy-5-oxo-4-(3,4,5-trihydroxyphenyl)-2,5-dihydrofuran-2-ylidene]-2-(4-hydroxyphenyl)acetic acid [(2Z)-3-hydroxy-5-oxo-4-(3,4,5-trihydroxyphenyl)furan-2-ylidene](4-hydroxyphenyl)acetic acid 25328-77-2 OC(=O)C(=C1/OC(=O)C(=C1O)C1=CC(O)=C(O)C(O)=C1)\C1=CC=C(O)C=C1 InChI=1S/C18H12O9/c19-9-3-1-7(2-4-9)13(17(24)25)16-15(23)12(18(26)27-16)8-5-10(20)14(22)11(21)6-8/h1-6,19-23H,(H,24,25)/b16-13- XLCYRDAATIMMJG-SSZFMOIBSA-N belongs to the class of organic compounds known as pyrogallols and derivatives. Pyrogallols and derivatives are compounds containing a 1,2,3-trihydroxybenzene moiety. Pyrogallols and derivatives Organic compounds Benzenoids Phenols Benzenetriols and derivatives Aromatic heteromonocyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids Benzene and substituted derivatives Butenolides Carbonyl compounds Carboxylic acids Dicarboxylic acids and derivatives Enoate esters Enol esters Enols Hydrocarbon derivatives Lactones Organic oxides Oxacyclic compounds Polyols Vinylogous acids 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid 2-furanone Alpha,beta-unsaturated carboxylic ester Aromatic heteromonocyclic compound Carbonyl group Carboxylic acid Carboxylic acid derivative Carboxylic acid ester Dicarboxylic acid or derivatives Dihydrofuran Enoate ester Enol Enol ester Hydrocarbon derivative Lactone Monocyclic benzene moiety Organic oxide Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Polyol Pyrogallol derivative Vinylogous acid logp 2.18 ALOGPS logs -3.47 ALOGPS solubility 1.26e-01 g/l ALOGPS melting_point Mp 300-302 dec. (205-215°) (unsharp) logp 1.63 ChemAxon pka_strongest_acidic 2.35 ChemAxon pka_strongest_basic -6 ChemAxon iupac 2-[(2Z)-3-hydroxy-5-oxo-4-(3,4,5-trihydroxyphenyl)-2,5-dihydrofuran-2-ylidene]-2-(4-hydroxyphenyl)acetic acid ChemAxon average_mass 372.2825 ChemAxon mono_mass 372.048131982 ChemAxon smiles OC(=O)C(=C1/OC(=O)C(=C1O)C1=CC(O)=C(O)C(O)=C1)\C1=CC=C(O)C=C1 ChemAxon formula C18H12O9 ChemAxon inchi InChI=1S/C18H12O9/c19-9-3-1-7(2-4-9)13(17(24)25)16-15(23)12(18(26)27-16)8-5-10(20)14(22)11(21)6-8/h1-6,19-23H,(H,24,25)/b16-13- ChemAxon inchikey XLCYRDAATIMMJG-SSZFMOIBSA-N ChemAxon polar_surface_area 164.75 ChemAxon refractivity 92.05 ChemAxon polarizability 34.66 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 8 ChemAxon donor_count 6 ChemAxon physiological_charge -2 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 23816 Specdb::CMs 43352 Specdb::CMs 133105 Specdb::CMs 140839 Specdb::MsMs 95394 Specdb::MsMs 95395 Specdb::MsMs 95396 Specdb::MsMs 159651 Specdb::MsMs 159652 Specdb::MsMs 159653 Specdb::MsMs 2715826 Specdb::MsMs 2715827 Specdb::MsMs 2715828 Specdb::MsMs 2966925 Specdb::MsMs 2966926 Specdb::MsMs 2966927 HMDB33542 #<Reference:0x000055ce31684818> Common mushroom Type 1 specific Agaricus bisporus 5341 Mushrooms Unknown generic Oyster mushroom Type 1 specific Pleurotus ostreatus 5322