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Ochratoxin A (FDB000488)

Record Information
Version1.0
Creation date2010-04-08 22:04:35 UTC
Update date2020-02-24 19:10:08 UTC
Primary IDFDB000488
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameOchratoxin A
DescriptionMycotoxin. Production by Aspergillus melleus, Aspergillus sulphureus and Penicillium viridicatum.Potential contaminant of foodstuffs, especially cereals. Found in stored grain products in UK (1997) Ochratoxin A, a toxin produced by Aspergillus ochraceus and Penicillium verrucosum, is one of the most abundant food-contaminating mycotoxins in the world. Human exposure occurs mainly through consumption of improperly stored food products, particularly contaminated grain and pork products, as well as coffee, wine grapes and dried grapes. The toxin has been found in the tissues and organs of animals, including human blood and breast milk. Ochratoxin A toxicity has large species- and sex-specific differences.
CAS Number303-47-9
Structure
Thumb
MOLSDF3D-SDFPDBSMILESInChI View 3D Structure
Synonyms
SynonymSource
Not AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.023 g/LALOGPS
logP3.18ALOGPS
logP4.61ChemAxon
logS-4.2ALOGPS
pKa (Strongest Acidic)3.17ChemAxon
pKa (Strongest Basic)-2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area112.93 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity101.77 m³·mol⁻¹ChemAxon
Polarizability40.12 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC20H18ClNO6
IUPAC name(2S)-2-{[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-yl]formamido}-3-phenylpropanoic acid
InChI IdentifierInChI=1S/C20H18ClNO6/c1-10-7-12-14(21)9-13(17(23)16(12)20(27)28-10)18(24)22-15(19(25)26)8-11-5-3-2-4-6-11/h2-6,9-10,15,23H,7-8H2,1H3,(H,22,24)(H,25,26)/t10-,15+/m1/s1
InChI KeyRWQKHEORZBHNRI-BMIGLBTASA-N
Isomeric SMILESC[C@@H]1CC2=C(C(=O)O1)C(O)=C(C=C2Cl)C(=O)N[C@@H](CC1=CC=CC=C1)C(O)=O
Average Molecular Weight403.813
Monoisotopic Molecular Weight403.08226502
Classification
Description Belongs to the class of organic compounds known as ochratoxins and related substances. These are a group of chemically related metabolites containing a 3,4-dihydro-3-methylisocoumarin moiety linked through a carboxyl group to L-beta-phenylalanine by a secondary amine bond.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassOchratoxins and related substances
Sub ClassNot Available
Direct ParentOchratoxins and related substances
Alternative Parents
Substituents
  • Ochratoxin-skeleton
  • Phenylalanine or derivatives
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-alpha-amino acid
  • 3-phenylpropanoic-acid
  • Alpha-amino acid or derivatives
  • Amphetamine or derivatives
  • Salicylic acid or derivatives
  • 2-benzopyran
  • Isochromane
  • Benzopyran
  • Aryl halide
  • Benzenoid
  • Aryl chloride
  • Dicarboxylic acid or derivatives
  • Monocyclic benzene moiety
  • Vinylogous acid
  • Carboxamide group
  • Carboxylic acid ester
  • Secondary carboxylic acid amide
  • Lactone
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Oxacycle
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organohalogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Biological location:

Source:

Role

Indirect biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 59.49%; H 4.49%; Cl 8.78%; N 3.47%; O 23.77%DFC
Melting PointMp 169°DFC
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logP4.74SANGSTER (1993)
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical Rotation[a]20D -118 (c, 1.1 in CHCl3)DFC
Spectroscopic UV Data333 (e 2400) (EtOH) (Berdy)DFC
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MSOchratoxin A, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0006-9346000000-0f256a6b22cf7bb2e294Spectrum
Predicted GC-MSOchratoxin A, 2 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-00e9-9210330000-961847cfb020199e91a1Spectrum
Predicted GC-MSOchratoxin A, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSOchratoxin A, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0k9i-4139700000-7370054788c4ba422c782017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2279000000-db0e6b9748bb326f459b2017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9520000000-1ef633b0c26d3fb20ae02017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0pb9-0009400000-edc4f177319e576169572017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0pb9-2539200000-3b92a4651b761437b1402017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9221000000-a1d42d3201899ff492f02017-09-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0223900000-ef4ea8167de3f9ff4fcc2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-4916300000-56066b94f1e32bc9b9292021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0uyi-7690000000-155cbbeca5ed287618e82021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0022900000-9fd6866f295ffed72c0a2021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-0492200000-5bda2ffac7fded8aa5562021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0uki-1970000000-3840c9347cddee0a7fbb2021-09-24View Spectrum
NMRNot Available
ChemSpider ID390954
ChEMBL IDNot Available
KEGG Compound IDC09955
Pubchem Compound ID442530
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB29399
CRC / DFC (Dictionary of Food Compounds) IDBCW75-C:BCW75-C
EAFUS IDNot Available
Dr. Duke IDOCHRATOXIN-A|OCHROTOXIN-A
BIGG IDNot Available
KNApSAcK IDC00003008
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDOchratoxin_A
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / Bioactivities
DescriptorIDDefinitionReference
calcium channel blocker38215 One of a class of drugs that acts by selective inhibition of calcium influx through cell membranes or on the release and binding of calcium in intracellular pools.CHEBI
carcinogenic50903 A role played by a chemical compound which is known to induce a process of carcinogenesis by corrupting normal cellular pathways, leading to the acquistion of tumoral capabilities.CHEBI
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).