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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2012-09-11 23:40:30 UTC
Update Date2019-07-23 06:26:26 UTC
HMDB IDHMDB0038370
Secondary Accession Numbers
  • HMDB38370
Metabolite Identification
Common NameProcyanidin C1
DescriptionProcyanidin C1, also known as cinnamtannin A1 or procyanidol C1, belongs to the class of organic compounds known as biflavonoids and polyflavonoids. These are organic compounds containing at least two flavan/flavone units. These units are usually linked through CC or C-O-C bonds. Some examples include C2-O-C3, C2-O-C4, C3'-C3''', and C6-C8''. Procyanidin C1 is an extremely weak basic (essentially neutral) compound (based on its pKa). Outside of the human body, procyanidin C1 is found, on average, in the highest concentration in a few different foods, such as chocolates, cocoa powders, and apples and in a lower concentration in sweet cherries, grape wines, and european plums. procyanidin C1 has also been detected, but not quantified in, several different foods, such as figs, chickpea, pineapples, common beans, and lettuces. This could make procyanidin C1 a potential biomarker for the consumption of these foods. A proanthocyanidin consisting of three (-)-epicatechin units joined by two successive (4beta->8)-linkages.
Structure
Data?1563863186
Synonyms
ValueSource
[Epicatechin(4b->8)]2-epicatechinChEBI
[Epicatechin-(4beta->8)]2-epicatechinChEBI
Cinnamtannin a1ChEBI
EC-(4b,8)-ec-(4b,8)-ecChEBI
Epicatechin-(4beta->8)-epicatechin-(4beta->8)-epicatechinChEBI
Proanthocyanidin C1ChEBI
Procyanidin trimer C1ChEBI
Procyanidol C1ChEBI
[Epicatechin-(4b->8)]2-epicatechinGenerator
[Epicatechin-(4β->8)]2-epicatechinGenerator
Epicatechin-(4b->8)-epicatechin-(4b->8)-epicatechinGenerator
Epicatechin-(4β->8)-epicatechin-(4β->8)-epicatechinGenerator
Chemical FormulaC45H38O18
Average Molecular Weight866.781
Monoisotopic Molecular Weight866.205814384
IUPAC Name(2R,3R,4S)-2-(3,4-dihydroxyphenyl)-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-4-yl]-4-[(2R,3R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-8-yl]-3,4-dihydro-2H-1-benzopyran-3,5,7-triol
Traditional Nameproanthocyanidin C1
CAS Registry Number37064-30-5
SMILES
[H][C@]1([C@@H](O)[C@H](OC2=CC(O)=CC(O)=C12)C1=CC(O)=C(O)C=C1)C1=C2O[C@@H]([C@H](O)[C@@]([H])(C3=C(O)C=C(O)C4=C3O[C@@H]([C@H](O)C4)C3=CC(O)=C(O)C=C3)C2=C(O)C=C1O)C1=CC(O)=C(O)C=C1
InChI Identifier
InChI=1S/C45H38O18/c46-18-10-27(54)33-32(11-18)61-42(16-2-5-21(48)25(52)8-16)39(59)37(33)35-29(56)14-30(57)36-38(40(60)43(63-45(35)36)17-3-6-22(49)26(53)9-17)34-28(55)13-23(50)19-12-31(58)41(62-44(19)34)15-1-4-20(47)24(51)7-15/h1-11,13-14,31,37-43,46-60H,12H2/t31-,37-,38+,39-,40-,41-,42-,43-/m1/s1
InChI KeyMOJZMWJRUKIQGL-XILRTYJMSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as biflavonoids and polyflavonoids. These are organic compounds containing at least two flavan/flavone units. These units are usually linked through CC or C-O-C bonds. Some examples include C2-O-C3, C2-O-C4, C3'-C3''', and C6-C8''.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassFlavonoids
Sub ClassBiflavonoids and polyflavonoids
Direct ParentBiflavonoids and polyflavonoids
Alternative Parents
Substituents
  • C-type proanthocyanidin
  • B-type proanthocyanidin
  • Bi- and polyflavonoid skeleton
  • Proanthocyanidin
  • Catechin
  • Flavan-3-ol
  • Hydroxyflavonoid
  • 3'-hydroxyflavonoid
  • 7-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • 4'-hydroxyflavonoid
  • 3-hydroxyflavonoid
  • Flavan
  • Chromane
  • 1-benzopyran
  • Benzopyran
  • Catechol
  • Phenol
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • 1-hydroxy-4-unsubstituted benzenoid
  • Benzenoid
  • Monocyclic benzene moiety
  • Secondary alcohol
  • Polyol
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Hydrocarbon derivative
  • Alcohol
  • Organic oxygen compound
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Biological location:

Source:

Role

Biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point140.0 - 142.0 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.25 g/LALOGPS
logP3.38ALOGPS
logP4.44ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)8.64ChemAxon
pKa (Strongest Basic)-5.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count18ChemAxon
Hydrogen Donor Count15ChemAxon
Polar Surface Area331.14 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity219.02 m³·mol⁻¹ChemAxon
Polarizability86.22 ųChemAxon
Number of Rings9ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-016r-0340210090-7a35b5c8f1ccbf9ce4feSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014j-0100005690-161c67165e6b61ef57bbSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0005-0100095720-02cbe7a0c9e7f5b22731Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-005a-0000091310-a37ac8e1536b30e63a1eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-0000000290-d007b6b11a94570a4ea1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0f79-0940310530-208f53a241f13af95f6bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-002r-0970202200-0b6a6c3437423c0f510fSpectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound ID157
FooDB IDFDB017710
KNApSAcK IDC00009098
Chemspider ID148540
KEGG Compound IDC17624
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkProcyanidin_C1
METLIN IDNot Available
PubChem Compound169853
PDB IDNot Available
ChEBI ID75643
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .