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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2013-03-07 21:31:58 UTC
Update Date2022-03-07 03:17:36 UTC
HMDB IDHMDB0059832
Secondary Accession Numbers
  • HMDB59832
Metabolite Identification
Common Name4-Ethyl-o-xylene
Description4-Ethyl-o-xylene belongs to the class of organic compounds known as o-xylenes. These are aromatic compounds that contain a o-xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups at the 1- and 2-positions. These are compounds containing a benzene ring which bears a methane group. 4-Ethyl-o-xylene is possibly neutral. Outside of the human body, 4-Ethyl-o-xylene has been detected, but not quantified in, cauliflowers and corns. This could make 4-ethyl-O-xylene a potential biomarker for the consumption of these foods.
Structure
Data?1563865980
Synonyms
ValueSource
2-Methyl-p-ethyltolueneHMDB
4-Ethyl-1,2-dimethylbenzeneHMDB
Chemical FormulaC10H14
Average Molecular Weight134.2182
Monoisotopic Molecular Weight134.109550448
IUPAC Name4-ethyl-1,2-dimethylbenzene
Traditional Name4-ethyl-1,2-dimethylbenzene
CAS Registry NumberNot Available
SMILES
CCC1=CC(C)=C(C)C=C1
InChI Identifier
InChI=1S/C10H14/c1-4-10-6-5-8(2)9(3)7-10/h5-7H,4H2,1-3H3
InChI KeySBUYFICWQNHBCM-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as o-xylenes. These are aromatic compounds that contain a o-xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups at the 1- and 2-positions.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassXylenes
Direct Parento-Xylenes
Alternative Parents
Substituents
  • O-xylene
  • Aromatic hydrocarbon
  • Unsaturated hydrocarbon
  • Hydrocarbon
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.02 g/LALOGPS
logP4.33ALOGPS
logP3.96ChemAxon
logS-3.8ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity45.78 m³·mol⁻¹ChemAxon
Polarizability17.08 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+129.38931661259
DarkChem[M-H]-128.84831661259
DeepCCS[M+H]+137.42530932474
DeepCCS[M-H]-133.59730932474
DeepCCS[M-2H]-170.97530932474
DeepCCS[M+Na]+146.51430932474
AllCCS[M+H]+124.132859911
AllCCS[M+H-H2O]+119.332859911
AllCCS[M+NH4]+128.632859911
AllCCS[M+Na]+129.832859911
AllCCS[M-H]-128.632859911
AllCCS[M+Na-2H]-130.332859911
AllCCS[M+HCOO]-132.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4-Ethyl-o-xyleneCCC1=CC(C)=C(C)C=C11375.5Standard polar33892256
4-Ethyl-o-xyleneCCC1=CC(C)=C(C)C=C11064.1Standard non polar33892256
4-Ethyl-o-xyleneCCC1=CC(C)=C(C)C=C11098.9Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 4-Ethyl-o-xylene CI-B (Non-derivatized)splash10-000i-0900000000-46ce365cca68bdd3a6012017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 4-Ethyl-o-xylene CI-B (Non-derivatized)splash10-000i-0900000000-46ce365cca68bdd3a6012018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Ethyl-o-xylene GC-MS (Non-derivatized) - 70eV, Positivesplash10-0159-3900000000-03c08f854c9e1fb18bd12017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Ethyl-o-xylene GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Ethyl-o-xylene GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 10V, Positive-QTOFsplash10-000i-0900000000-27c19ad1facaec10135b2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 20V, Positive-QTOFsplash10-000i-1900000000-8304b475ace8d2937a2c2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 40V, Positive-QTOFsplash10-0uxu-9400000000-16a17840aaf78718ce8a2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 10V, Negative-QTOFsplash10-001i-0900000000-e3eaa2a9746266b28ae52016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 20V, Negative-QTOFsplash10-001i-0900000000-08a9276b22cfcc52ae312016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 40V, Negative-QTOFsplash10-0159-3900000000-b9224306651876c6442e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 10V, Positive-QTOFsplash10-052r-1900000000-d5e025b0ae352617e3782021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 20V, Positive-QTOFsplash10-0a7l-9700000000-c42a5ddb3ba73b62cc9d2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 40V, Positive-QTOFsplash10-00ou-9100000000-562e670a101ca69dbd462021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 10V, Negative-QTOFsplash10-001i-0900000000-f5fa2e4eafb73a2ce5ef2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 20V, Negative-QTOFsplash10-001i-0900000000-306a837d17e424baddf02021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Ethyl-o-xylene 40V, Negative-QTOFsplash10-014i-1900000000-3179ca65d9233db143662021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen Locations
  • Breath
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BreathDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothAsthma details
Associated Disorders and Diseases
Disease References
Asthma
  1. Ibrahim B, Basanta M, Cadden P, Singh D, Douce D, Woodcock A, Fowler SJ: Non-invasive phenotyping using exhaled volatile organic compounds in asthma. Thorax. 2011 Sep;66(9):804-9. doi: 10.1136/thx.2010.156695. Epub 2011 Jul 11. [PubMed:21749985 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB007614
KNApSAcK IDNot Available
Chemspider ID13040
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound13629
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available