Record Information
Version1.0
Created at2020-04-27 17:28:10 UTC
Updated at2021-01-06 19:07:02 UTC
CannabisDB IDCDB006088
Secondary Accession NumbersNot Available
Cannabis Compound Identification
Common Name4-Ethyl-1,2-benzenediol
Description4-Ethyl-1,2-benzenediol, also known as 4-ethylpyrocatechol, belongs to the class of organic compounds known as catechols. Catechols are compounds containing a 1,2-benzenediol moiety. 4-Ethyl-1,2-benzenediol is an extremely weak basic (essentially neutral) compound (based on its pKa). Outside of the human body, 4-Ethyl-1,2-benzenediol is found, on average, in the highest concentration within a few different foods, such as arabica coffee, coffee, and cocoa powders and in a lower concentration in beers. 4-Ethyl-1,2-benzenediol has also been detected, but not quantified in, a few different foods, such as coffee and coffee products, eggplants, and green vegetables. This could make 4-ethyl-1,2-benzenediol a potential biomarker for the consumption of these foods. 4-Ethylcatechol is also a constituent of cannabis smoke. 4-Ethyl-1,2-benzenediol is formed during the combustion of cannabis and is therefore a constituent of cannabis smoke ( Ref:DOI ).
Structure
Thumb
Synonyms
ValueSource
4-EthylcatecholHMDB
4-EthylpyrocatecholHMDB
4-Ethylpyrocatechol, 8ciHMDB
Chemical FormulaC8H10O2
Average Molecular Weight138.16
Monoisotopic Molecular Weight138.0681
IUPAC Name4-ethylbenzene-1,2-diol
Traditional Name4-ethylbenzene-1,2-diol
CAS Registry Number1124-39-6
SMILES
CCC1=CC(O)=C(O)C=C1
InChI Identifier
InChI=1S/C8H10O2/c1-2-6-3-4-7(9)8(10)5-6/h3-5,9-10H,2H2,1H3
InChI KeyHFLGBNBLMBSXEM-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 DescriptorsNot Available
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point41 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
logPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP1.74ALOGPS
logP2.32ChemAxon
logS-1.1ALOGPS
pKa (Strongest Acidic)9.52ChemAxon
pKa (Strongest Basic)-6.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area40.46 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity39.66 m³·mol⁻¹ChemAxon
Polarizability14.77 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MS4-Ethyl-1,2-benzenediol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0079-2900000000-2171b1eac2762a8afe24Spectrum
Predicted GC-MS4-Ethyl-1,2-benzenediol, 2 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-01b9-5690000000-8473f1858712e3d48234Spectrum
Predicted GC-MS4-Ethyl-1,2-benzenediol, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MS4-Ethyl-1,2-benzenediol, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-cfd55c699b663d7c84332015-04-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2900000000-f1a5178e168369a01e4d2015-04-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0ufr-9100000000-5c1a962eddfbaeaba15d2015-04-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-11ca02b796388914a6472015-04-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-1900000000-0d3b6ab4226bac9a5cac2015-04-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0673-9700000000-5597623aae19131d35912015-04-25View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-e2bbe2db2b145c67830a2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-003f-9500000000-0e538033bebb0479e88e2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fvr-9000000000-78228f0270dd35d8c8a42021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-08ef9d705ca98ce39abf2021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-2900000000-7dc219a6c51ca57e746b2021-09-24View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-230580e07dc3f472caac2021-09-24View Spectrum
NMRNot Available
Pathways
Pathways
Protein Targets
Enzymes
Protein NameGene NameLocusUniprot IDDetails
Catechol O-methyltransferaseCOMT22q11.21P21964 details
UDP-glucuronosyltransferase 1-1UGT1A12q37P22309 details
Sulfotransferase 1A3SULT1A3P0DMM9 details
TransportersNot Available
Metal Bindings
Protein NameGene NameLocusUniprot IDDetails
Catechol O-methyltransferaseCOMT22q11.21P21964 details
ReceptorsNot Available
Transcriptional FactorsNot Available
Concentrations Data
Not Available
HMDB IDHMDB0040174
DrugBank IDNot Available
Phenol Explorer Compound ID705
FoodDB IDFDB019886
KNApSAcK IDC00056475
Chemspider ID63926
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound70761
PDB IDNot Available
ChEBI IDNot Available
References
General ReferencesNot Available

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 transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
UGT1A1
Uniprot ID:
P22309
Molecular weight:
59590.91
General function:
sulfotransferase activity
Specific function:
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of phenolic monoamines (neurotransmitters such as dopamine, norepinephrine and serotonin) and phenolic and catechol drugs.
Gene Name:
SULT1A3
Uniprot ID:
P0DMM9
Molecular weight:
34195.96