1.0 2010-04-08 22:05:23 UTC 2025-11-18 22:37:42 UTC FDB002473 Rhamnazin Rhamnazin, also known as 3',7-dimethylquercetin or 3,5,4'-trihydroxy-7,3'-dimethoxyflavone, is a member of the class of compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, rhamnazin is considered to be a flavonoid lipid molecule. Rhamnazin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Rhamnazin can be synthesized from quercetin. Rhamnazin can also be synthesized into viscumneoside VII and viscumneoside IV. Rhamnazin can be found in lemon balm, which makes rhamnazin a potential biomarker for the consumption of this food product. Rhamnazin is an O-methylated flavonol, a type of chemical compound. It can be found in Rhamnus petiolaris, a buckthorn plant endemic to Sri Lanka . 3,5-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-1-benzopyran-4-one, 9CI 4',5-Dihydroxy-3',7-dimethoxyflavonol Quercetin 3',7-dimethyl ether Rhamnazin C17H14O7 330.2889 330.073952802 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one rhamnazin 552-54-5 COC1=CC(O)=C2C(=O)C(O)=C(OC2=C1)C1=CC(OC)=C(O)C=C1 InChI=1S/C17H14O7/c1-22-9-6-11(19)14-13(7-9)24-17(16(21)15(14)20)8-3-4-10(18)12(5-8)23-2/h3-7,18-19,21H,1-2H3 MYMGKIQXYXSRIJ-UHFFFAOYSA-N belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Flavonols Organic compounds Phenylpropanoids and polyketides Flavonoids Flavones Aromatic heteropolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids 3'-O-methylated flavonoids 3-hydroxyflavonoids 4'-hydroxyflavonoids 5-hydroxyflavonoids 7-O-methylated flavonoids Alkyl aryl ethers Anisoles Chromones Heteroaromatic compounds Hydrocarbon derivatives Methoxybenzenes Methoxyphenols Organic oxides Oxacyclic compounds Phenoxy compounds Pyranones and derivatives Vinylogous acids 1-benzopyran 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid 3-hydroxyflavone 3-hydroxyflavonoid 3p-methoxyflavonoid-skeleton 4'-hydroxyflavonoid 5-hydroxyflavonoid 7-methoxyflavonoid-skeleton Alkyl aryl ether Anisole Aromatic heteropolycyclic compound Benzenoid Benzopyran Chromone Ether Heteroaromatic compound Hydrocarbon derivative Hydroxyflavonoid Methoxybenzene Methoxyphenol Monocyclic benzene moiety Organic oxide Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Phenol Phenol ether Phenoxy compound Pyran Pyranone Vinylogous acid Flavones and Flavonols logp 2.25 ALOGPS logs -3.64 ALOGPS solubility 7.58e-02 g/l ALOGPS logp 2.45 ChemAxon pka_strongest_acidic 7.14 ChemAxon pka_strongest_basic -3.9 ChemAxon iupac 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one ChemAxon average_mass 330.2889 ChemAxon mono_mass 330.073952802 ChemAxon smiles COC1=CC(O)=C2C(=O)C(O)=C(OC2=C1)C1=CC(OC)=C(O)C=C1 ChemAxon formula C17H14O7 ChemAxon inchi InChI=1S/C17H14O7/c1-22-9-6-11(19)14-13(7-9)24-17(16(21)15(14)20)8-3-4-10(18)12(5-8)23-2/h3-7,18-19,21H,1-2H3 ChemAxon inchikey MYMGKIQXYXSRIJ-UHFFFAOYSA-N ChemAxon polar_surface_area 105.45 ChemAxon refractivity 85.83 ChemAxon polarizability 32.62 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 7 ChemAxon donor_count 3 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 58383 Specdb::MsMs 58384 Specdb::MsMs 58385 Specdb::MsMs 114312 Specdb::MsMs 114313 Specdb::MsMs 114314 Specdb::MsMs 2461987 Specdb::MsMs 2461988 Specdb::MsMs 2461989 Specdb::MsMs 2500103 Specdb::MsMs 2500104 Specdb::MsMs 2500105 Specdb::CMs 55514 Specdb::CMs 70179 Specdb::CMs 149898 Lemon balm Type 1 specific Melissa officinalis 39338