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Record Information
Version2.0
Created at2022-05-30 16:51:12 UTC
Updated at2022-05-30 16:51:13 UTC
NP-MRD IDNP0137394
Secondary Accession NumbersNone
Natural Product Identification
Common NameGallotannin
DescriptionTannin belongs to the class of organic compounds known as hydrolyzable tannins. These are tannins with a structure characterized by either of the following models. In model 1, the structure contains galloyl units (in some cases, shikimic acid units) that are linked to diverse polyol carbohydrate-, catechin-, or triterpenoid units. In model 2, contains at least two galloyl units C-C coupled to each other, and do not contain a glycosidically linked catechin unit. Tannin is an extremely weak basic (essentially neutral) compound (based on its pKa). Outside of the human body, tannin is found, on average, in the highest concentration in a few different foods, such as nances, tea, and black walnuts and in a lower concentration in potato, common thymes, and papaya. Tannin has also been detected, but not quantified in, several different foods, such as coconuts, dandelions, roman camomiles, german camomiles, and figs. This could make tannin a potential biomarker for the consumption of these foods.
Structure
Thumb
Synonyms
ValueSource
CorilaginHMDB
Gallotannic acidHMDB
GallotanninHMDB
QuebrachoHMDB
Tannin (tannic acid)HMDB
(1S,18R,20S,21S,22S)-6,7,8,11,12,13,21,22-Octahydroxy-3,16-dioxo-2,17,19-trioxatetracyclo[16.3.1.0⁴,⁹.0¹⁰,¹⁵]docosa-4,6,8,10,12,14-hexaen-20-yl 3,4,5-trihydroxybenzoic acidGenerator
Chemical FormulaC26H20O18
Average Mass620.4262 Da
Monoisotopic Mass620.06496 Da
IUPAC Name(1S,18R,20S,21S,22S)-6,7,8,11,12,13,21,22-octahydroxy-3,16-dioxo-2,17,19-trioxatetracyclo[16.3.1.0⁴,⁹.0¹⁰,¹⁵]docosa-4(9),5,7,10,12,14-hexaen-20-yl 3,4,5-trihydroxybenzoate
Traditional Name(1S,18R,20S,21S,22S)-6,7,8,11,12,13,21,22-octahydroxy-3,16-dioxo-2,17,19-trioxatetracyclo[16.3.1.0⁴,⁹.0¹⁰,¹⁵]docosa-4(9),5,7,10,12,14-hexaen-20-yl 3,4,5-trihydroxybenzoate
CAS Registry NumberNot Available
SMILES
O[C@@H]1[C@H](OC(=O)C2=CC(O)=C(O)C(O)=C2)O[C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(C=C(O)C(O)=C3O)C(=O)O[C@@H]1[C@@H]2O
InChI Identifier
InChI=1S/C26H20O18/c27-8-1-5(2-9(28)14(8)31)22(38)42-25-19(36)21-20(37)26(44-25)43-24(40)7-4-11(30)16(33)18(35)13(7)12-6(23(39)41-21)3-10(29)15(32)17(12)34/h1-4,19-21,25-37H/t19-,20-,21-,25+,26-/m0/s1
InChI KeyVXMKYRQZQXVKGB-CWWHNZPOSA-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 OriginNot Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as hydrolyzable tannins. These are tannins with a structure characterized by either of the following models. In model 1, the structure contains galloyl units (in some cases, shikimic acid units) that are linked to diverse polyol carbohydrate-, catechin-, or triterpenoid units. In model 2, contains at least two galloyl units C-C coupled to each other, and do not contain a glycosidically linked catechin unit.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassTannins
Sub ClassHydrolyzable tannins
Direct ParentHydrolyzable tannins
Alternative Parents
Substituents
  • Hydrolyzable tannin
  • Galloyl ester
  • Gallic acid or derivatives
  • P-hydroxybenzoic acid alkyl ester
  • M-hydroxybenzoic acid ester
  • P-hydroxybenzoic acid ester
  • Benzoate ester
  • Benzenetriol
  • Benzoic acid or derivatives
  • Tricarboxylic acid or derivatives
  • Pyrogallol derivative
  • Benzoyl
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Monocyclic benzene moiety
  • Monosaccharide
  • Benzenoid
  • Oxane
  • Lactone
  • Secondary alcohol
  • Carboxylic acid ester
  • Acetal
  • Oxacycle
  • Organoheterocyclic compound
  • Carboxylic acid derivative
  • Polyol
  • Hydrocarbon derivative
  • Alcohol
  • Organic oxygen compound
  • Organic oxide
  • Organooxygen compound
  • 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
logP1.89ALOGPS
logP1.36ChemAxon
logS-2.2ALOGPS
pKa (Strongest Acidic)7.4ChemAxon
pKa (Strongest Basic)-5.5ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count15ChemAxon
Hydrogen Donor Count11ChemAxon
Polar Surface Area310.66 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity137.36 m³·mol⁻¹ChemAxon
Polarizability52.55 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0005790
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB001111
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkTannin
METLIN IDNot Available
PubChem Compound22833652
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General ReferencesNot Available