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Record Information
Version3.6
Creation Date2005-11-16 15:48:42 UTC
Update Date2016-02-11 01:04:32 UTC
HMDB IDHMDB01398
Secondary Accession NumbersNone
Metabolite Identification
Common NameGuaiacol
DescriptionGuaiacol is a phenolic compound with a methoxy group and is the monomethyl ether of catechol. Guaiacol is readily oxidized by the heme iron of peroxidases including the peroxidase of cyclooxygenase (COX) enzymes. It therefore serves as a reducing co-substrate for COX reactions. Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. It is a yellowish aromatic oil that is now commonly derived from guaiacum or wood creosote. It is used medicinally as an expectorant, antiseptic, and local anesthetic. Guaiacol is used in traditional dental pulp sedation, and has the property of inducing cell proliferation; guaiacol is a potent scavenger of reactive oxygen radicals and its radical scavenging activity may be associated with its effect on cell proliferation. Guaiacol is also used in the preparation of synthetic vanillin. Guaiacol is also present in wood smoke, as a product of pyrolysis of lignin. Guaiacol has been found in the urine of patients with neuroblastoma and pheochromocytoma. (PMID 4344880 , 16152729 ).
Structure
Thumb
Synonyms
ValueSource
1-Hydroxy-2-methoxybenzeneChEBI
2-HydroxyanisoleChEBI
Catechol monomethyl etherChEBI
O-MethoxyphenolChEBI
2-Methoxy-phenolHMDB
2-MethoxyphenolHMDB
AnastilHMDB
CreodonHMDB
Guaiacol (liquid) extra pureHMDB
GuaiastilHMDB
GuaicolHMDB
GuaicolinaHMDB
GuajakolHMDB
GuajolHMDB
GuasolHMDB
GuiacolHMDB
MethoxyphenolHMDB
MethylcatacholHMDB
MethylcatecholHMDB
O-GuaiacolHMDB
O-HydroxyanisoleHMDB
O-Methoxy-phenolHMDB
O-Methyl catecholHMDB
Pyrocatechol monomethyl etherHMDB
Pyroguaiac acidHMDB
Chemical FormulaC7H8O2
Average Molecular Weight124.1372
Monoisotopic Molecular Weight124.0524295
IUPAC Name2-methoxyphenol
Traditional Nameguaiacol
CAS Registry Number90-05-1
SMILES
COC1=CC=CC=C1O
InChI Identifier
InChI=1S/C7H8O2/c1-9-7-5-3-2-4-6(7)8/h2-5,8H,1H3
InChI KeyInChIKey=LHGVFZTZFXWLCP-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as methoxyphenols. These are compounds containing a methoxy group attached to the benzene ring of a phenol moiety.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassPhenols and derivatives
Direct ParentMethoxyphenols
Alternative Parents
Substituents
  • Methoxyphenol
  • Methoxybenzene
  • Phenol ether
  • Anisole
  • Alkyl aryl ether
  • Ether
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
Biofunction
  • Component of Tyrosine metabolism
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point28 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility18.7 mg/mL at 15 °CNot Available
LogP1.32HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
Water Solubility67.4 mg/mLALOGPS
logP1.32ALOGPS
logP1.51ChemAxon
logS-0.27ALOGPS
pKa (Strongest Acidic)9.98ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area29.46 Å2ChemAxon
Rotatable Bond Count1ChemAxon
Refractivity34.5 m3·mol-1ChemAxon
Polarizability12.69 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MSNot Available
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI RMU-6E) , Positivesplash10-0a4i-6900000000-49cb804087a42b1d1a22View in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI RMU-6L) , Positivesplash10-0ab9-5900000000-b580cbc25d4176ce3894View in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80B) , Positivesplash10-0pir-9700000000-12606badb77d4257635dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0900000000-6b7a2fdf4e9a28ec6045View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-2900000000-ff014b7b55a5237cf91eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-9100000000-8785b2e2d86c6294a754View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0900000000-8856c60866e810389af7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-1900000000-8db14d5e5710471f76a7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9400000000-bc0d3592d62ec26dad6fView in MoNA
MSMass Spectrum (Electron Ionization)splash10-0ac0-9800000000-5e89a9881e848e1b6c90View in MoNA
1D NMR1H NMR SpectrumNot Available
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
Biological Properties
Cellular LocationsNot Available
Biofluid Locations
  • Blood
  • Feces
  • Urine
Tissue LocationNot Available
Pathways
NameSMPDB LinkKEGG Link
AlkaptonuriaSMP00169Not Available
Disulfiram PathwaySMP00429Not Available
Dopamine beta-hydroxylase deficiencySMP00498Not Available
HawkinsinuriaSMP00190Not Available
Monoamine oxidase-a deficiency (MAO-A)SMP00533Not Available
Tyrosine MetabolismSMP00006map00350
Tyrosinemia Type ISMP00218Not Available
Tyrosinemia, transient, of the newbornSMP00494Not Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified8.5 +/- 1.0 uMAdult (>18 years old)Both
Normal
details
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot ApplicableAdult (>18 years old)Both
Clostridium difficile infection
details
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)BothBreast cancer details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound ID650
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB011885
KNApSAcK IDC00002654
Chemspider ID447
KEGG Compound IDC01502
BioCyc IDCPD-400
BiGG IDNot Available
Wikipedia LinkGuaiacol
NuGOwiki LinkHMDB01398
Metagene LinkHMDB01398
METLIN ID6217
PubChem Compound460
PDB IDJZ3
ChEBI ID28591
References
Synthesis ReferenceChen, Jiehua; Xu, Baocai; Zhang, Hong; Ye, Jianfeng. Method for preparing guaiacol from catechol and dimethyl carbonate. Faming Zhuanli Shenqing Gongkai Shuomingshu (2007), 6pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Tsibris JC, Virgin SD, Khan-Dawood FS, Langenberg PW, Thomason JL, Spellacy WN: Cervicovaginal peroxidases: markers of the fertile period. Obstet Gynecol. 1986 Mar;67(3):316-20. [3003635 ]
  2. Bieniek G, Kurkiewicz S, Wilczok T, Klimek K, Swiatkowska L, Lusiak A: occupational exposure to aromatic hydrocarbons at a coke plant: Part II. Exposure assessment of volatile organic compounds. J Occup Health. 2004 May;46(3):181-6. [15215658 ]
  3. Ogata N, Shibata T: Binding of alkyl- and alkoxy-substituted simple phenolic compounds to human serum proteins. Res Commun Mol Pathol Pharmacol. 2000;107(1-2):167-73. [11334365 ]
  4. Mutlib AE, Klein JT: Application of liquid chromatography/mass spectrometry in accelerating the identification of human liver cytochrome P450 isoforms involved in the metabolism of iloperidone. J Pharmacol Exp Ther. 1998 Sep;286(3):1285-93. [9732390 ]
  5. Rogers LE, Lyon GM Jr, Porter FS: Spot test for vanillylmandelic acid and other guaiacols in urine of patients with neuroblastoma. Am J Clin Pathol. 1972 Oct;58(4):383-7. [4344880 ]
  6. Pruitt KM, Kamau DN, Miller K, Mansson-Rahemtulla B, Rahemtulla F: Quantitative, standardized assays for determining the concentrations of bovine lactoperoxidase, human salivary peroxidase, and human myeloperoxidase. Anal Biochem. 1990 Dec;191(2):278-86. [1964765 ]
  7. Kupfer A, Lawson J, Branch RA: Stereoselectivity of the arene epoxide pathway of mephenytoin hydroxylation in man. Epilepsia. 1984 Feb;25(1):1-7. [6420144 ]
  8. Mimurai T, Yazaki K, Sawaki K, Ozawa T, Kawaguchi M: Hydroxyl radical scavenging effects of guaiacol used in traditional dental pulp sedation: reaction kinetic study. Biomed Res. 2005 Aug;26(4):139-45. [16152729 ]

Enzymes

General function:
Involved in magnesium ion binding
Specific function:
Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol.
Gene Name:
COMT
Uniprot ID:
P21964
Molecular weight:
30036.77
General function:
Involved in O-methyltransferase activity
Specific function:
Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones (By similarity). Required for auditory function.
Gene Name:
LRTOMT
Uniprot ID:
Q8WZ04
Molecular weight:
32154.43