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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2021-09-24 03:39:40 UTC
Update Date2021-09-24 03:39:40 UTC
HMDB IDHMDB0303662
Secondary Accession NumbersNone
Metabolite Identification
Common NameProcyanidin C2
DescriptionProcyanidin c2, also known as C-(4,8)-C-(4,8)-C or procyanidin trimer c2, is a member of the class of compounds known as biflavonoids and polyflavonoids. Biflavonoids and polyflavonoids 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 c2 is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Procyanidin c2 can be found in barley, beer, and common grape, which makes procyanidin c2 a potential biomarker for the consumption of these food products.
Structure
Thumb
Synonyms
ValueSource
C-(4,8)-C-(4,8)-CChEBI
Catechin-(4alpha->8)-catechin-(4alpha->8)-catechinChEBI
Procyanidin trimer C2ChEBI
Catechin-(4a->8)-catechin-(4a->8)-catechinGenerator
Catechin-(4α->8)-catechin-(4α->8)-catechinGenerator
Chemical FormulaC45H38O18
Average Molecular Weight866.781
Monoisotopic Molecular Weight866.205814384
IUPAC Name(2R,3S,4R)-2-(3,4-dihydroxyphenyl)-8-[(2R,3S,4S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-4-yl]-4-[(2R,3S)-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 Name(2R,3S,4R)-2-(3,4-dihydroxyphenyl)-8-[(2R,3S,4S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-4-yl]-4-[(2R,3S)-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
CAS Registry NumberNot Available
SMILES
O[C@H]1CC2=C(O)C=C(O)C([C@H]3[C@H](O)[C@H](OC4=C([C@H]5[C@H](O)[C@H](OC6=CC(O)=CC(O)=C56)C5=CC(O)=C(O)C=C5)C(O)=CC(O)=C34)C3=CC(O)=C(O)C=C3)=C2O[C@@H]1C1=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+/m0/s1
InChI KeyMOJZMWJRUKIQGL-WNCKYJNFSA-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
Not AvailableNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
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
Polarizability86.02 ųChemAxon
Number of Rings9ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
AllCCS[M+H]+284.23232859911
AllCCS[M+H-H2O]+284.10732859911
AllCCS[M+Na]+284.31832859911
AllCCS[M+NH4]+284.30532859911
AllCCS[M-H]-277.87832859911
AllCCS[M+Na-2H]-282.48332859911
AllCCS[M+HCOO]-287.6132859911
DeepCCS[M-2H]-319.43330932474
DeepCCS[M+Na]+293.40530932474

Predicted Kovats Retention Indices

Not Available
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 10V, Positive-QTOFsplash10-014j-0100005690-161c67165e6b61ef57bb2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 20V, Positive-QTOFsplash10-0005-0100095720-02cbe7a0c9e7f5b227312016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 40V, Positive-QTOFsplash10-005a-0000091310-a37ac8e1536b30e63a1e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 10V, Negative-QTOFsplash10-014i-0000000290-d007b6b11a94570a4ea12016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 20V, Negative-QTOFsplash10-0f79-0940310530-208f53a241f13af95f6b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 40V, Negative-QTOFsplash10-002r-0970202200-0b6a6c3437423c0f510f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 10V, Positive-QTOFsplash10-014i-0000130390-0956f39193d04ffc022e2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 20V, Positive-QTOFsplash10-014j-0230010790-e4739b7dfc06a8ce85c52021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 40V, Positive-QTOFsplash10-0gb9-0702021980-2dff9a9ac18d44e0dcb22021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 10V, Negative-QTOFsplash10-014i-0000000090-0a49232c23c9595472be2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 20V, Negative-QTOFsplash10-0ap0-0000000490-74cc1981148d556d0a672021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Procyanidin C2 40V, Negative-QTOFsplash10-05br-0420110590-f1ef9f8f904ea2b36f4b2021-10-21Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
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 IDNot Available
FooDB IDFDB017715
KNApSAcK IDC00009091
Chemspider ID9357147
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkProcyanidin_C2
METLIN IDNot Available
PubChem Compound11182062
PDB IDNot Available
ChEBI ID75644
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available