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Record Information
Version2.0
Created at2022-03-17 19:45:55 UTC
Updated at2022-03-17 19:45:56 UTC
NP-MRD IDNP0045952
Secondary Accession NumbersNone
Natural Product Identification
Common NameRhamnazin
Description3,5-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one, also known as 3',7-dimethylquercetin or 3,5,4'-trihydroxy-7,3'-dimethoxyflavone, 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. Thus, 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one is considered to be a flavonoid lipid molecule. A dimethoxyflavone that is quercetin in which the hydroxy groups at the 3' and 7 positions have been replaced by methoxy groups. 3,5-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Outside of the human body, 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one has been detected, but not quantified in, lemon balms. Rhamnazin is found in Achyrocline alata, Achyrocline tomentosa, Aeonium spp., Aesculus hippocastanum , Alnus japonica, Ambrosia trifida, Ammi visnaga, Argyrochosma nivea, Artemisia campestris , Artemisia gmelinii, Artemisia monosperma, Blumea balsamifera, Callicarpa kwangtungensis, Capparicordis tweediana, Capparis tweediana , Cistus incanus, Cistus laurifolius, Cistus spp., Escallonia pulverulenta, Eucalyptus globulus, Eucryphia jinksii, Garcinia bracteata, Garcinia dulcis , Geranium macrorrhizum , Grindelia nana, Halocnemum strobilaceum, Hazardia squarrosa, Heliotropium stenophyllum, Heterotheca villosa, Kitaibela vitifolia, Laggera alata, Larrea cuneifolia , Madia elegans, Wedelia biflora , Miliusa horsfieldii, Mirabilis viscosa, Mutisia orbignyana, Myricaria alopecuroides, Nasturtium officinale, Nervilia fordii, Nothofagus cunninghamii, Notholaena neglecta, Notholaena nivea, Nymphoides geminata, Orthosiphon spicatus, Oxytropis sylvatica, Palhinhaea cernua, Passiflora palmeri, Pericome caudata, Persicaria hydropiper, Polanisia dodecandra, Polygonum polystachyum, Polygonum punctatum , Retama sphaerocarpa, Rhamnus alaternus , Rhamnus cathartica , Rhamnus disperma, Rhamnus lycioides, Rhamnus prinoides , Rhamnus saxatilis, Salpiglossis sinuata, Siegesbeckia jorullensis, Stevia subpubescens, Traversia baccharoides and Viscum cruciatum . Rhamnazin was first documented in 2001 (PMID: 11594002). This could make 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one a potential biomarker for the consumption of these foods (PMID: 25704088) (PMID: 27025066).
Structure
Thumb
Synonyms
ValueSource
3',7-DimethylquercetinChEBI
3,5,4'-Trihydroxy-7,3'-dimethoxyflavoneChEBI
RhamnazinChEBI
Quercetin 7,3'-dimethyl etherHMDB
Chemical FormulaC17H14O7
Average Mass330.2889 Da
Monoisotopic Mass330.07395 Da
IUPAC Name3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one
Traditional Namerhamnazin
CAS Registry Number552-54-5
SMILES
COC1=CC(O)=C2C(=O)C(O)=C(OC2=C1)C1=CC(OC)=C(O)C=C1
InChI Identifier
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
InChI KeyMYMGKIQXYXSRIJ-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Achyrocline alataLOTUS Database
Achyrocline tomentosaLOTUS Database
Aeonium spp.Plant
Aesculus hippocastanumPlant
Alnus japonicaLOTUS Database
Ambrosia trifidaPlant
Ammi visnagaLOTUS Database
Argyrochosma niveaLOTUS Database
Artemisia campestrisPlant
Artemisia gmeliniiLOTUS Database
Artemisia monospermaLOTUS Database
Blumea balsamiferaLOTUS Database
Callicarpa kwangtungensisLOTUS Database
Capparicordis tweedieanaLOTUS Database
Capparis tweedianaPlant
Cistus incanusLOTUS Database
Cistus laurifoliusLOTUS Database
Cistus spp.Plant
Escallonia pulverulentaPlant
Eucalyptus globulusLOTUS Database
Eucryphia jinksiiPlant
Garcinia bracteata (nom. inval.)Plant
Garcinia dulcisPlant
Geranium macrorrhizumPlant
Grindelia nanaPlant
Halocnemum strobilaceumLOTUS Database
Hazardia squarrosaLOTUS Database
Heliotropium stenophyllumPlant
Heterotheca villosaPlant
Kitaibela vitifoliaPlant
Laggera alataLOTUS Database
Larrea cuneifoliaPlant
Madia elegansPlant
Melanthera bifloraPlant
Melissa officinalis L.FooDB
Miliusa horsfieldiiLOTUS Database
Mirabilis viscosaPlant
Mutisia orbignyanaLOTUS Database
Myricaria alopecuroidesLOTUS Database
Nasturtium officinaleLOTUS Database
Nervilia fordiiLOTUS Database
Nothofagus cunninghamiiPlant
Notholaena neglectaLOTUS Database
Notholaena niveaPlant
Nymphoides geminataLOTUS Database
Orthosiphon spicatusPlant
Oxytropis sylvaticaLOTUS Database
Palhinhaea cernuaLOTUS Database
Passiflora palmeriPlant
Pericome caudataLOTUS Database
Persicaria hydropiperLOTUS Database
Polanisia dodecandraLOTUS Database
Polygonum polystachyumPlant
Polygonum punctatumPlant
Retama sphaerocarpaLOTUS Database
Rhamnus alaternusPlant
Rhamnus catharticaPlant
Rhamnus dispermaPlant
Rhamnus lycioidesLOTUS Database
Rhamnus prinoidesPlant
Rhamnus saxatilisPlant
Salpiglossis sinuataPlant
Siegesbeckia jorullensis-
Stevia subpubescensPlant
Traversia baccharoidesLOTUS Database
Viscum cruciatumPlant
Chemical Taxonomy
Description 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.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassFlavonoids
Sub ClassFlavones
Direct ParentFlavonols
Alternative Parents
Substituents
  • 3p-methoxyflavonoid-skeleton
  • 7-methoxyflavonoid-skeleton
  • 3-hydroxyflavone
  • 3-hydroxyflavonoid
  • 4'-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • Hydroxyflavonoid
  • Chromone
  • Benzopyran
  • Methoxyphenol
  • 1-benzopyran
  • Phenoxy compound
  • Anisole
  • Methoxybenzene
  • Phenol ether
  • Phenol
  • 1-hydroxy-2-unsubstituted benzenoid
  • Pyranone
  • 1-hydroxy-4-unsubstituted benzenoid
  • Alkyl aryl ether
  • Benzenoid
  • Pyran
  • Monocyclic benzene moiety
  • Vinylogous acid
  • Heteroaromatic compound
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP2.25ALOGPS
logP2.45ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)7.14ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area105.45 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity85.83 m³·mol⁻¹ChemAxon
Polarizability32.62 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0133830
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB002473
KNApSAcK IDNot Available
Chemspider ID4478873
KEGG Compound IDNot Available
BioCyc IDCPD-14947
BiGG IDNot Available
Wikipedia LinkRhamnazin
METLIN IDNot Available
PubChem Compound5320945
PDB IDNot Available
ChEBI ID133721
Good Scents IDNot Available
References
General References
  1. Pande V: Antioxidant activity of rhamnazin-4'-O-beta-[apiosyl(1-->2)] glucoside in the brain of aged rats. Pharmazie. 2001 Sep;56(9):749-50. [PubMed:11594002 ]
  2. Yu Y, Cai W, Pei CG, Shao Y: Rhamnazin, a novel inhibitor of VEGFR2 signaling with potent antiangiogenic activity and antitumor efficacy. Biochem Biophys Res Commun. 2015 Mar 20;458(4):913-9. doi: 10.1016/j.bbrc.2015.02.059. Epub 2015 Feb 19. [PubMed:25704088 ]
  3. Philchenkov AA, Zavelevych MP: RHAMNAZIN INHIBITS PROLIFERATION AND INDUCES APOPTOSIS OF HUMAN JURKAT LEUKEMIA CELLS IN VITRO. Ukr Biochem J. 2015 Nov-Dec;87(6):122-8. doi: 10.15407/ubj87.06.122. [PubMed:27025066 ]