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Record Information
Version2.0
Created at2022-09-02 04:31:06 UTC
Updated at2022-09-02 04:31:06 UTC
NP-MRD IDNP0148727
Secondary Accession NumbersNone
Natural Product Identification
Common Name8-hydroxy-1,2,3,4,6-pentamethoxyxanthen-9-one
DescriptionEustomin belongs to the class of organic compounds known as xanthones. These are polycyclic aromatic compounds containing a xanthene moiety conjugated to a ketone group at carbon 9. Xanthene is a tricyclic compound made up of two benzene rings linearly fused to each other through a pyran ring. 8-hydroxy-1,2,3,4,6-pentamethoxyxanthen-9-one is found in Centaurium erythraea, Centaurium littorale and Schenkia spicata. Eustomin is an extremely weak basic (essentially neutral) compound (based on its pKa).
Structure
Thumb
Synonyms
ValueSource
1-Hydroxy-3,5,6,7,8-pentamethoxyxanthoneMeSH
1-Hydroxy-3,5,6,7,8-pentamethoxy-xanthoneMeSH
Chemical FormulaC18H18O8
Average Mass362.3340 Da
Monoisotopic Mass362.10017 Da
IUPAC Name8-hydroxy-1,2,3,4,6-pentamethoxy-9H-xanthen-9-one
Traditional Name8-hydroxy-1,2,3,4,6-pentamethoxyxanthen-9-one
CAS Registry NumberNot Available
SMILES
COC1=CC(O)=C2C(=O)C3=C(OC)C(OC)=C(OC)C(OC)=C3OC2=C1
InChI Identifier
InChI=1S/C18H18O8/c1-21-8-6-9(19)11-10(7-8)26-15-12(13(11)20)14(22-2)16(23-3)18(25-5)17(15)24-4/h6-7,19H,1-5H3
InChI KeySVEPSJMWTARFFE-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Centaurium erythraeaLOTUS Database
Centaurium littoraleLOTUS Database
Schenkia spicataLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as xanthones. These are polycyclic aromatic compounds containing a xanthene moiety conjugated to a ketone group at carbon 9. Xanthene is a tricyclic compound made up of two benzene rings linearly fused to each other through a pyran ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct ParentXanthones
Alternative Parents
Substituents
  • Xanthone
  • Chromone
  • Anisole
  • Phenol ether
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Phenol
  • Pyranone
  • Pyran
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous ester
  • Vinylogous acid
  • Ether
  • Oxacycle
  • Organic oxygen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
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
logP2.26ALOGPS
logP2.52ChemAxon
logS-3.5ALOGPS
pKa (Strongest Acidic)8.29ChemAxon
pKa (Strongest Basic)-3.7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area92.68 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity91.11 m³·mol⁻¹ChemAxon
Polarizability36.21 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound5490842
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. LOTUS database [Link]