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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 20:36:27 UTC
Update Date2022-03-07 02:54:34 UTC
HMDB IDHMDB0035598
Secondary Accession Numbers
  • HMDB35598
Metabolite Identification
Common NameAflatoxin B2a
DescriptionAflatoxin B2a belongs to the class of organic compounds known as difurocoumarocyclopentenones. These are polycyclic aromatic compounds containing a cyclopenten-2-one ring fused to the coumarin moiety of the difurocoumarin skeleton. Aflatoxin B2a is an extremely weak basic (essentially neutral) compound (based on its pKa). Aflatoxin B2a is a metabolite of Aspergillus flavus and Aspergillus parasiticus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987).
Structure
Data?1563862743
Synonyms
ValueSource
Aflatoxin b1, hemiacetalHMDB
Dihydrohydroxy-aflatoxin b1HMDB
Dihydrohydroxyaflatoxin b1HMDB
Chemical FormulaC17H14O7
Average Molecular Weight330.2889
Monoisotopic Molecular Weight330.073952802
IUPAC Name5-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.0²,⁹.0³,⁷.0¹³,¹⁷]nonadeca-1(12),2(9),10,13(17)-tetraene-16,18-dione
Traditional Name5-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.0²,⁹.0³,⁷.0¹³,¹⁷]nonadeca-1(12),2(9),10,13(17)-tetraene-16,18-dione
CAS Registry Number17878-54-5
SMILES
COC1=CC2=C(C3CC(O)OC3O2)C2=C1C1=C(C(=O)CC1)C(=O)O2
InChI Identifier
InChI=1S/C17H14O7/c1-21-9-5-10-14(7-4-11(19)23-17(7)22-10)15-13(9)6-2-3-8(18)12(6)16(20)24-15/h5,7,11,17,19H,2-4H2,1H3
InChI KeyPFQSKXVNBUHPIW-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as difurocoumarocyclopentenones. These are polycyclic aromatic compounds containing a cyclopenten-2-one ring fused to the coumarin moiety of the difurocoumarin skeleton.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCoumarins and derivatives
Sub ClassFuranocoumarins
Direct ParentDifurocoumarocyclopentenones
Alternative Parents
Substituents
  • Difurocoumarocyclopentenone
  • Difurocoumarin
  • Benzopyran
  • 1-benzopyran
  • Coumaran
  • Anisole
  • Aryl alkyl ketone
  • Aryl ketone
  • Alkyl aryl ether
  • Pyranone
  • Pyran
  • Benzenoid
  • Heteroaromatic compound
  • Tetrahydrofuran
  • Lactone
  • Ketone
  • Hemiacetal
  • Acetal
  • Organoheterocyclic compound
  • Ether
  • Oxacycle
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point217 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility1.44 g/LALOGPS
logP0.96ALOGPS
logP0.98ChemAxon
logS-2.4ALOGPS
pKa (Strongest Acidic)12.38ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area91.29 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity79.63 m³·mol⁻¹ChemAxon
Polarizability32.14 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+177.16331661259
DarkChem[M-H]-173.45731661259
DeepCCS[M+H]+176.51930932474
DeepCCS[M-H]-174.16130932474
DeepCCS[M-2H]-208.04830932474
DeepCCS[M+Na]+183.27530932474
AllCCS[M+H]+174.332859911
AllCCS[M+H-H2O]+171.032859911
AllCCS[M+NH4]+177.332859911
AllCCS[M+Na]+178.132859911
AllCCS[M-H]-179.032859911
AllCCS[M+Na-2H]-178.332859911
AllCCS[M+HCOO]-177.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Aflatoxin B2aCOC1=CC2=C(C3CC(O)OC3O2)C2=C1C1=C(C(=O)CC1)C(=O)O24231.6Standard polar33892256
Aflatoxin B2aCOC1=CC2=C(C3CC(O)OC3O2)C2=C1C1=C(C(=O)CC1)C(=O)O22984.7Standard non polar33892256
Aflatoxin B2aCOC1=CC2=C(C3CC(O)OC3O2)C2=C1C1=C(C(=O)CC1)C(=O)O23173.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Aflatoxin B2a,1TMS,isomer #1COC1=CC2=C(C3=C1C1=C(C(=O)CC1)C(=O)O3)C1CC(O[Si](C)(C)C)OC1O23040.0Semi standard non polar33892256
Aflatoxin B2a,1TBDMS,isomer #1COC1=CC2=C(C3=C1C1=C(C(=O)CC1)C(=O)O3)C1CC(O[Si](C)(C)C(C)(C)C)OC1O23278.5Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Aflatoxin B2a GC-MS (Non-derivatized) - 70eV, Positivesplash10-0gw0-0093000000-72aebab5bc1464e2b6712017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Aflatoxin B2a GC-MS (1 TMS) - 70eV, Positivesplash10-00ei-9287000000-d076aaed5db9188950612017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Aflatoxin B2a GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 10V, Positive-QTOFsplash10-001i-0019000000-9ed7cc899db39716068b2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 20V, Positive-QTOFsplash10-01q9-0098000000-caf6d1df7d891b6698202016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 40V, Positive-QTOFsplash10-00lr-4190000000-93cba69960ec3ad5bdc52016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 10V, Negative-QTOFsplash10-004i-0089000000-59450bcef8d92a2d910d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 20V, Negative-QTOFsplash10-01u0-0089000000-4c498e0e44571e4d85d62016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 40V, Negative-QTOFsplash10-0gec-2090000000-8d96f2e31d1541ac01472016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 10V, Negative-QTOFsplash10-004i-0009000000-c574fa658a65fe6898a02021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 20V, Negative-QTOFsplash10-004i-0079000000-245002d02f05fda88f7f2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 40V, Negative-QTOFsplash10-002b-1294000000-ff6a063d7b9247f1a4a02021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 10V, Positive-QTOFsplash10-001i-0009000000-931b28fcfeb1b8f804fe2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 20V, Positive-QTOFsplash10-001i-0009000000-f0c8ea7f0bc28f9b7eef2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Aflatoxin B2a 40V, Positive-QTOFsplash10-0udi-0079000000-cd83dd273656280564e02021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
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 IDFDB014291
KNApSAcK IDNot Available
Chemspider ID28555046
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound14252429
PDB IDNot Available
ChEBI IDNot Available
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 References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .