1.0 2010-04-08 22:12:24 UTC 2025-11-19 01:46:41 UTC FDB016381 Quercetin 4',7-diglucoside Isolated from Allium cepa (yellow onion). Quercetin 4',7-diglucoside is found in many foods, some of which are shallot, onion-family vegetables, garden onion (variety), and garden onion. Quercetin 4',7-diglucoside Quercetin 7,4'-diglucoside Quercetin 7,4'-O-diglucoside C27H30O17 626.5169 626.148299534 3,5-dihydroxy-2-(3-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4H-chromen-4-one 3,5-dihydroxy-2-(3-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one 42900-82-3 OCC1OC(OC2=CC(O)=C3C(=O)C(O)=C(OC3=C2)C2=CC(O)=C(OC3OC(CO)C(O)C(O)C3O)C=C2)C(O)C(O)C1O InChI=1S/C27H30O17/c28-6-14-17(32)20(35)23(38)26(43-14)40-9-4-11(31)16-13(5-9)41-25(22(37)19(16)34)8-1-2-12(10(30)3-8)42-27-24(39)21(36)18(33)15(7-29)44-27/h1-5,14-15,17-18,20-21,23-24,26-33,35-39H,6-7H2 QZXHFNCQMMUANB-UHFFFAOYSA-N belongs to the class of organic compounds known as flavonoid-7-o-glycosides. These are phenolic compounds containing a flavonoid moiety which is O-glycosidically linked to carbohydrate moiety at the C7-position. Flavonoid-7-O-glycosides Organic compounds Phenylpropanoids and polyketides Flavonoids Flavonoid glycosides Aromatic heteropolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids 3'-hydroxyflavonoids 3-hydroxyflavonoids 5-hydroxyflavonoids Acetals Chromones Flavonols Heteroaromatic compounds Hydrocarbon derivatives Monosaccharides O-glycosyl compounds Organic oxides Oxacyclic compounds Oxanes Phenol ethers Phenolic glycosides Phenoxy compounds Polyols Primary alcohols Pyranones and derivatives Secondary alcohols Vinylogous acids 1-benzopyran 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid 3'-hydroxyflavonoid 3-hydroxyflavone 3-hydroxyflavonoid 5-hydroxyflavonoid Acetal Alcohol Aromatic heteropolycyclic compound Benzenoid Benzopyran Chromone Flavone Flavonoid-7-o-glycoside Glycosyl compound Heteroaromatic compound Hydrocarbon derivative Hydroxyflavonoid Monocyclic benzene moiety Monosaccharide O-glycosyl compound Organic oxide Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Oxane Phenol Phenol ether Phenolic glycoside Phenoxy compound Polyol Primary alcohol Pyran Pyranone Secondary alcohol Vinylogous acid logp -0.81 ALOGPS logs -2.29 ALOGPS solubility 3.23e+00 g/l ALOGPS melting_point Mp 195-197° logp -2.4 ChemAxon pka_strongest_acidic 8.08 ChemAxon pka_strongest_basic -3.6 ChemAxon iupac 3,5-dihydroxy-2-(3-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4H-chromen-4-one ChemAxon average_mass 626.5169 ChemAxon mono_mass 626.148299534 ChemAxon smiles OCC1OC(OC2=CC(O)=C3C(=O)C(O)=C(OC3=C2)C2=CC(O)=C(OC3OC(CO)C(O)C(O)C3O)C=C2)C(O)C(O)C1O ChemAxon formula C27H30O17 ChemAxon inchi InChI=1S/C27H30O17/c28-6-14-17(32)20(35)23(38)26(43-14)40-9-4-11(31)16-13(5-9)41-25(22(37)19(16)34)8-1-2-12(10(30)3-8)42-27-24(39)21(36)18(33)15(7-29)44-27/h1-5,14-15,17-18,20-21,23-24,26-33,35-39H,6-7H2 ChemAxon inchikey QZXHFNCQMMUANB-UHFFFAOYSA-N ChemAxon polar_surface_area 285.75 ChemAxon refractivity 141.15 ChemAxon polarizability 59.5 ChemAxon rotatable_bond_count 7 ChemAxon acceptor_count 17 ChemAxon donor_count 11 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 566687 Specdb::CMs 566688 Specdb::CMs 566689 Specdb::CMs 566690 Specdb::CMs 566691 Specdb::CMs 566692 Specdb::CMs 566693 Specdb::CMs 566694 Specdb::CMs 566695 Specdb::CMs 566696 Specdb::CMs 566697 Specdb::CMs 566698 Specdb::CMs 566699 Specdb::CMs 566700 Specdb::CMs 566701 Specdb::CMs 566702 Specdb::CMs 566703 Specdb::CMs 566704 Specdb::CMs 566705 Specdb::CMs 566706 Specdb::CMs 566707 Specdb::CMs 566708 Specdb::CMs 566709 Specdb::CMs 566710 Specdb::CMs 566711 Specdb::NmrOneD 140210 Specdb::NmrOneD 140211 Specdb::NmrOneD 140212 Specdb::NmrOneD 140213 Specdb::NmrOneD 140214 Specdb::NmrOneD 140215 Specdb::NmrOneD 140216 Specdb::NmrOneD 140217 Specdb::NmrOneD 140218 Specdb::NmrOneD 140219 Specdb::NmrOneD 140220 Specdb::NmrOneD 140221 Specdb::NmrOneD 140222 Specdb::NmrOneD 140223 Specdb::NmrOneD 140224 Specdb::NmrOneD 140225 Specdb::NmrOneD 140226 Specdb::NmrOneD 140227 Specdb::NmrOneD 140228 Specdb::NmrOneD 140229 Specdb::MsMs 7169 Specdb::MsMs 7170 Specdb::MsMs 7171 Specdb::MsMs 13841 Specdb::MsMs 13842 Specdb::MsMs 13843 Specdb::MsMs 2686446 Specdb::MsMs 2686447 Specdb::MsMs 2686448 Specdb::MsMs 2992871 Specdb::MsMs 2992872 Specdb::MsMs 2992873 HMDB37356 #<Reference:0x000055ce3247f440> Garden onion Type 1 specific Allium cepa 4679 Garden onion (var.) Type 1 specific Allium cepa var. cepa 4679 0.903974 1.80794704 0.0 mg/100 g Green onion Type 1 Onion-family vegetables Unknown generic Red onion Type 1 Shallot Type 1 specific Allium ascalonicum 1476995 0.0 0.0 0.0 mg/100 g Welsh onion Type 1 specific Allium fistulosum 35875