Record Information
Version1.0
Creation Date2016-09-30 22:39:07 UTC
Update Date2020-05-19 22:01:22 UTC
MCDB ID BMDB0000957
Secondary Accession Numbers
  • BMDB00957
Metabolite Identification
Common NamePyrocatechol
DescriptionPyrocatechol, also known as 1,2-benzenediol or 2-hydroxyphenol, belongs to the class of organic compounds known as catechols. Catechols are compounds containing a 1,2-benzenediol moiety. Pyrocatechol exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Pyrocatechol exists in all living organisms, ranging from bacteria to humans. Pyrocatechol is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound.
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
OC1=CC=CC=C1O
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
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point105 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility461 mg/mLNot Available
LogP0.88HANSCH,C ET AL. (1995)
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
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-0udr-1950000000-16187bb35dcb40c26e782014-06-16View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-8900000000-4e15f35dca47661de5902017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-9600000000-032a40483dec937380752017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-7900000000-83f892852c355a3863e92017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-9400000000-90885264baa17f65d9542017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0udr-1950000000-16187bb35dcb40c26e782017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0udr-1930000000-24d2e0a8e36245d9e1872017-09-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-03di-7900000000-8b112b8af75eb2d086762017-07-27View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-0fl9-9730000000-a35befff1c602124f29e2017-10-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, PositiveNot Available2021-11-06View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-01ox-9400000000-d59dce8c5e56b026f8b22012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-014i-9000000000-632cabc9b371835019c12012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-02t9-9200000000-ac902cb99981017de3b52012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (VARIAN MAT-44) , Positivesplash10-03di-8900000000-95af3d2738de98d27f262012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (Unknown) , Positivesplash10-03di-9600000000-032a40483dec937380752012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80) , Positivesplash10-03di-7900000000-f5cb1c53768e05ca15302012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0a4i-0900000000-c94dab4d218dbb3bb1082012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) 30V, Negativesplash10-0a4i-1900000000-edd8ba1e77bbb2f763042012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0a4i-0900000000-c94dab4d218dbb3bb1082017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0a4i-1900000000-edd8ba1e77bbb2f763042017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-0a4i-0900000000-12053747e62e910151ad2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-72e952ea8e487994be542021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-19b1bae28f3dfde3323a2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Negativesplash10-0006-9000000000-33b2a7e7a951547dfafa2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-6e731d4eaba18fcad18f2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-1900000000-a7c1a830ea96e82252bf2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-3772b2cca96bf4a1b05f2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-9531f3e0c85e67d6c6ed2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-1900000000-5886b926a1814092c4b12021-09-20View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-66523f3122b954e6400f2015-05-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-1900000000-5fd776e479836f7464af2015-05-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-9000000000-2c46a1375dbb634ef7352015-05-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-986c93875cb12d90fa902015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-0900000000-a301685abb4194689ca32015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9500000000-2017b42835ace86f16ee2015-05-27View Spectrum
MSMass Spectrum (Electron Ionization)splash10-03di-9600000000-b8e03f4f3ea89044828e2014-09-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, experimental)Not Available2012-12-04View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not Available2012-12-05View Spectrum
Concentrations
StatusValueReferenceDetails
Detected but not QuantifiedNot Applicable details
Detected but not QuantifiedNot Applicable details
HMDB IDHMDB0000957
DrugBank IDDB02232
Phenol Explorer Compound ID654
FoodDB IDFDB001512
KNApSAcK IDC00002644
Chemspider ID13837760
KEGG Compound IDC15571
BioCyc IDCATECHOL
BiGG IDNot Available
Wikipedia LinkCatechol
METLIN ID282
PubChem Compound289
PDB IDNot Available
ChEBI ID18135
References
Synthesis ReferenceLauterbach, Manfred; Zimmermann, Volker; Jaeger, Guenter; Radig, Wolfram; Adam, Johannes; Blady, Regina. Extraction and purification of pyrocatechol. Ger. (East) (1986), 4 pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Mung D, Li L: Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem. 2017 Apr 18;89(8):4435-4443. doi: 10.1021/acs.analchem.6b03737. Epub 2017 Mar 28. [PubMed:28306241 ]
  2. Mung D, Li L: Applying quantitative metabolomics based on chemical isotope labeling LC-MS for detecting potential milk adulterant in human milk. Anal Chim Acta. 2018 Feb 25;1001:78-85. doi: 10.1016/j.aca.2017.11.019. Epub 2017 Nov 14. [PubMed:29291809 ]