1.0 2026-09-22 22:32:56 UTC 2026-09-22 22:32:56 UTC FDB118989 Dieckol 4-[4-[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxy-dibenzo-p-dioxin-2-yl]oxy-3,5-dihydroxy-phenoxy]dibenzo-p-dioxin-1,3,6,8-tetrol 4-[4-[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxydibenzo-p-dioxin-2-yl]oxy-3,5-dihydroxyphenoxy]dibenzo-p-dioxin-1,3,6,8-tetrol C36H22O18 742.554 742.080613868 4-(4-{[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxyoxanthren-2-yl]oxy}-3,5-dihydroxyphenoxy)oxanthrene-1,3,6,8-tetrol 4-(4-{[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxyoxanthren-2-yl]oxy}-3,5-dihydroxyphenoxy)oxanthrene-1,3,6,8-tetrol OC1=CC(OC2=C(O)C=C(O)C3=C2OC2=C(O)C=C(OC4=C(O)C=C(OC5=C(O)C=C(O)C6=C5OC5=C(O)C=C(O)C=C5O6)C=C4O)C=C2O3)=CC(O)=C1 InChI=1S/C36H22O18/c37-12-1-13(38)3-15(2-12)49-31-22(44)10-25(47)34-35(31)54-30-21(43)8-17(9-27(30)52-34)48-28-19(41)6-16(7-20(28)42)50-32-23(45)11-24(46)33-36(32)53-29-18(40)4-14(39)5-26(29)51-33/h1-11,37-47H DRZQFGYIIYNNEC-UHFFFAOYSA-N belongs to the class of organic compounds known as tannins. These are naturally occurring polyphenols which be categorized into four main classes: hydrolyzable tannin (based on ellagic acid or gallic acid), condensed tannins (made of oligomeric or polymeric proanthocyanidins), complex tannins (made of a catechin bound to a gallotannin or elagitannin), and phlorotannins (oligomers of phloroglucinol). Tannins Organic compounds Phenylpropanoids and polyketides Tannins Aromatic heteropolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids Diarylethers Dibenzo-p-dioxins Hydrocarbon derivatives Oxacyclic compounds Phenol ethers Phenoxy compounds Polyols Resorcinols 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid Aromatic heteropolycyclic compound Benzenoid Diaryl ether Dibenzo-p-dioxin Ether Hydrocarbon derivative Monocyclic benzene moiety Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Phenol Phenol ether Phenoxy compound Polyol Resorcinol Tannin aromatic ether oxacycle phlorotannin logp 4.78 ALOGPS logs -4.19 ALOGPS solubility 4.75e-02 g/l ALOGPS logp 5.19 ChemAxon pka_strongest_acidic 6.25 ChemAxon pka_strongest_basic -6 ChemAxon iupac 4-(4-{[6-(3,5-dihydroxyphenoxy)-4,7,9-trihydroxyoxanthren-2-yl]oxy}-3,5-dihydroxyphenoxy)oxanthrene-1,3,6,8-tetrol ChemAxon average_mass 742.554 ChemAxon mono_mass 742.080613868 ChemAxon smiles OC1=CC(OC2=C(O)C=C(O)C3=C2OC2=C(O)C=C(OC4=C(O)C=C(OC5=C(O)C=C(O)C6=C5OC5=C(O)C=C(O)C=C5O6)C=C4O)C=C2O3)=CC(O)=C1 ChemAxon formula C36H22O18 ChemAxon inchi InChI=1S/C36H22O18/c37-12-1-13(38)3-15(2-12)49-31-22(44)10-25(47)34-35(31)54-30-21(43)8-17(9-27(30)52-34)48-28-19(41)6-16(7-20(28)42)50-32-23(45)11-24(46)33-36(32)53-29-18(40)4-14(39)5-26(29)51-33/h1-11,37-47H ChemAxon inchikey DRZQFGYIIYNNEC-UHFFFAOYSA-N ChemAxon polar_surface_area 287.14 ChemAxon refractivity 179.42 ChemAxon polarizability 69.21 ChemAxon rotatable_bond_count 6 ChemAxon acceptor_count 11 ChemAxon donor_count 11 ChemAxon physiological_charge -2 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 3428913 Specdb::MsMs 3428914 Specdb::MsMs 3428915 Specdb::MsMs 3428916 Specdb::MsMs 3428917 Specdb::MsMs 3428918 Specdb::CMs 871815 Specdb::CMs 871816 Specdb::CMs 871817 Specdb::CMs 871818 Specdb::CMs 871819 Specdb::CMs 871820 Specdb::CMs 871821 Specdb::CMs 871822 Specdb::CMs 871823 Specdb::CMs 871824 Specdb::CMs 871825 Specdb::CMs 871826 Specdb::CMs 871827 Specdb::CMs 871828 Specdb::CMs 871829 Specdb::CMs 871830 Specdb::CMs 871831 Specdb::CMs 871832 Specdb::CMs 871833 Specdb::CMs 871834 Specdb::CMs 871835 Specdb::CMs 871836 Specdb::CMs 871837 Specdb::CMs 871838 Specdb::CMs 871839