Record Information
Version1.0
Creation Date2016-07-13 19:46:33 UTC
Update Date2018-04-30 21:14:42 UTC
LmdbLMDB00289
Secondary Accession NumbersNone
Metabolite Identification
Common NamePyrocatechol
DescriptionPyrocatechol, often known as catechol or benzene-1,2-diol, is a benzenediol, with formula C6H4(OH)2. It was first prepared in 1839 by H. Reinsch by distilling catechin (the juice of Mimosa catechu). This colourless compound occurs naturally, but about 20000 tons are manufactured each year, mainly as precursors to pesticides, flavors, and fragrances. Its sulfonic acid is often present in the urine of many mammals. Small amounts of catechol occur naturally in fruits and vegetables, along with the enzyme polyphenol oxidase. Upon mixing the enzyme with the substrate and exposure to oxygen (as when a potato or apple is cut), the colorless catechol oxidizes to reddish-brown benzoquinone derivatives. The enzyme is inactivated by adding an acid, such as lemon juice, or by refrigeration. Excluding oxygen also prevents the browning reaction. Catechol melts at 28 oC and boils at 250 oC. It is employed in medicine as an expectorant. The dimethyl ether or veratrol is also used in medicine. Many other pyrocatechin derivatives have been suggested for therapeutic application.
Structure
Thumb
Synonyms
ValueSource
1,2-BenzenediolChEBI
1,2-DihydroxybenzeneChEBI
2-HydroxyphenolChEBI
alpha-HydroxyphenolChEBI
BrenzcatechinChEBI
O-BenzenediolChEBI
O-HydroxyphenolChEBI
PyrocatechinChEBI
a-HydroxyphenolGenerator
Α-hydroxyphenolGenerator
CatecholHMDB
Durafur developer CHMDB
Fouramine PCHHMDB
Fourrine 68HMDB
O-DihydroxybenzeneHMDB
O-DioxybenzeneHMDB
O-HydroquinoneHMDB
O-PhenylenediolHMDB
OxyphenateHMDB
Oxyphenic acidHMDB
Pelagol grey CHMDB
PhthalhydroquinoneHMDB
Phthalic alcoholHMDB
PyrocatechineHMDB
1,3-DihydroxybenzeneHMDB
Catechol dipotassium saltHMDB
Catechol, 14C-labeled CPDHMDB
Catechol sodium saltHMDB
Benzene-1,2-diolPhytoBank
PyrocatecholPhytoBank
1,2-HydroxybenzenePhytoBank
Chemical FormulaC6H6O2
Average Molecular Weight110.1106
Monoisotopic Molecular Weight110.036779436
IUPAC Namebenzene-1,2-diol
Traditional Namecatechol
CAS Registry Number120-80-9
SMILES
[H]OC1=C([H])C([H])=C([H])C([H])=C1O[H]
InChI Identifier
InChI=1S/C6H6O2/c7-5-3-1-2-4-6(5)8/h1-4,7-8H
InChI KeyYCIMNLLNPGFGHC-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as catechols. Catechols are compounds containing a 1,2-benzenediol moiety.
KingdomOrganic compounds
Super ClassBenzenoids
ClassPhenols
Sub ClassBenzenediols
Direct ParentCatechols
Alternative Parents
Substituents
  • Catechol
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Monocyclic benzene moiety
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot 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
logP0.74ALOGPS
logP1.37ChemAxon
logS-0.17ALOGPS
pKa (Strongest Acidic)9.34ChemAxon
pKa (Strongest Basic)-6.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area40.46 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity30.02 m³·mol⁻¹ChemAxon
Polarizability10.69 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-0udr-1950000000-16187bb35dcb40c26e78Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-8900000000-4e15f35dca47661de590Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-9600000000-032a40483dec93738075Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-7900000000-83f892852c355a3863e9Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-9400000000-90885264baa17f65d954Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0udr-1950000000-16187bb35dcb40c26e78Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0udr-1930000000-24d2e0a8e36245d9e187Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-03di-7900000000-8b112b8af75eb2d08676Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-0fl9-9730000000-a35befff1c602124f29eSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-01ox-9400000000-d59dce8c5e56b026f8b2Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-014i-9000000000-632cabc9b371835019c1Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-02t9-9200000000-ac902cb99981017de3b5Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (VARIAN MAT-44) , Positivesplash10-03di-8900000000-95af3d2738de98d27f26Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (Unknown) , Positivesplash10-03di-9600000000-032a40483dec93738075Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80) , Positivesplash10-03di-7900000000-f5cb1c53768e05ca1530Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0a4i-0900000000-c94dab4d218dbb3bb108Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) 30V, Negativesplash10-0a4i-1900000000-edd8ba1e77bbb2f76304Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0a4i-0900000000-c94dab4d218dbb3bb108Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0a4i-1900000000-edd8ba1e77bbb2f76304Spectrum
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-0a4i-0900000000-12053747e62e910151adSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-72e952ea8e487994be54Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-19b1bae28f3dfde3323aSpectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Negativesplash10-0006-9000000000-33b2a7e7a951547dfafaSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-6e731d4eaba18fcad18fSpectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-1900000000-a7c1a830ea96e82252bfSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-3772b2cca96bf4a1b05fSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-9531f3e0c85e67d6c6edSpectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-1900000000-5886b926a1814092c4b1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-66523f3122b954e6400fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-1900000000-5fd776e479836f7464afSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-9000000000-2c46a1375dbb634ef735Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-986c93875cb12d90fa90Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-0900000000-a301685abb4194689ca3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9500000000-2017b42835ace86f16eeSpectrum
MSMass Spectrum (Electron Ionization)splash10-03di-9600000000-b8e03f4f3ea89044828eSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Serum
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
SerumDetected but not QuantifiedNot ApplicableNot AvailableCaprine details
DrugBank IDDB02232
HMDB IDHMDB0000957
FooDB IDFDB001512
Phenol Explorer ID654
KNApSAcK IDC00002644
BiGG IDNot Available
BioCyc IDCATECHOL
METLIN ID282
PDB IDNot Available
Wikipedia LinkCatechol
Chemspider ID13837760
ChEBI ID18135
PubChem Compound ID289
Kegg Compound IDC15571
YMDB IDNot Available
ECMDB IDECMDB00957
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available