Record Information
Version1.0
Created at2020-03-19 00:49:22 UTC
Updated at2020-12-07 19:07:37 UTC
CannabisDB IDCDB000657
Secondary Accession NumbersNot Available
Cannabis Compound Identification
Common Namep-Xylene
Descriptionp-Xylene, also known as para-xylene or p-methyltoluene, compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene which is substituted by a variable number of methyl groups in different positions. As such, p-xylene is a monocyclic benzene carrying two methyl groups at positions 1 and 4. p-Xylene occurs naturally in petroleum and coal tar. It is a constitutional isomer of m-xylene and o-xylene, the mixture being called xylene or xylenes. It is emitted by most combustion sources, including automobile exhaust and tobacco smoke. It has also been reported to a volatile component of cannabis plants (PMID: 26657499 ). p-Xylene is a colorless, slightly oily flammable liquid. p-Xylene has been detected, but not quantified in, several different foods, such as pepper (C. annuum), green bell peppers, parsley, yellow bell peppers, and red bell peppers. This could make p-xylene a potential biomarker for the consumption of these foods. p-Xylene is a potentially toxic compound. Inhaling p-xylene can cause dizziness, headache, drowsiness, and nausea. If p-xylene is ingested one's mouth should be rinsed, and vomiting should not be induced. p-Xylene can cause issues with the central nervous system and if swallowed could cause chemical pneumonitis when breathed into the lungs. It is a component in the production of terephthalic acid for polyesters such as polyethylene terephthalate (generally known as PET).
Structure
Thumb
Synonyms
ValueSource
1,4-DimethylbenzeneChEBI
1,4-DimethylbenzolChEBI
4-MethyltolueneChEBI
4-XyleneChEBI
p-DimethylbenzeneChEBI
p-MethyltolueneChEBI
p-XylolChEBI
PARA-xyleneChEBI
1,4-XyleneHMDB
ParaxyleneHMDB
Chemical FormulaC8H10
Average Molecular Weight106.17
Monoisotopic Molecular Weight106.0783
IUPAC Name1,4-xylene
Traditional Namepara-xylene
CAS Registry NumberNot Available
SMILES
CC1=CC=C(C)C=C1
InChI Identifier
InChI=1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3
InChI KeyURLKBWYHVLBVBO-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as p-xylenes. These are aromatic compounds that contain a p-xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups at the 1- and 4-positions.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassXylenes
Direct Parentp-Xylenes
Alternative Parents
Substituents
  • P-xylene
  • Aromatic hydrocarbon
  • Unsaturated hydrocarbon
  • Hydrocarbon
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
Physiological effect

Health effect:

Disposition

Source:

Route of exposure:

Biological location:

Role

Indirect biological role:

Environmental role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
logPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.15ALOGPS
logP3ChemAxon
logS-2.7ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity36.14 m³·mol⁻¹ChemAxon
Polarizability13.12 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-052f-9500000000-313b5b919e2804de352e2014-09-20View Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-052f-9400000000-4b2097f841009fc7a1f9Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-052f-9400000000-58e5d57804187b27c6c5Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-0a4i-0900000000-3bf7450495bd2c1b9ae3Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-052f-9400000000-4b2097f841009fc7a1f9Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-052f-9400000000-58e5d57804187b27c6c5Spectrum
GC-MSp-Xylene, non-derivatized, GC-MS Spectrumsplash10-0a4i-0900000000-3bf7450495bd2c1b9ae3Spectrum
Predicted GC-MSp-Xylene, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0a4i-4900000000-1ec9768719ddef2a0c60Spectrum
Predicted GC-MSp-Xylene, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSp-Xylene, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0900000000-4772806c99a8f48026de2016-08-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-0900000000-8925e888b29ad16f979b2016-08-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0pdi-9300000000-cad6676e80b49deb4ca32016-08-01View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-987fa9bb840efccd55d22016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-0900000000-987fa9bb840efccd55d22016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-4900000000-5f8059855d9428f651592016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-4900000000-4ad4cb819bede18f8cf02021-10-12View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-9100000000-cd6c0b30c7e9933348f52021-10-12View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fvl-9000000000-a902105af7410297b68e2021-10-12View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0900000000-861947f0491f909a25882021-10-12View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-0900000000-861947f0491f909a25882021-10-12View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-3900000000-e442490a7749a4a80a2a2021-10-12View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 300 MHz, CDCl3, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, 25.16 MHz, CDCl3, experimental)Spectrum
Pathways
Pathways
Protein Targets
EnzymesNot Available
TransportersNot Available
Metal BindingsNot Available
ReceptorsNot Available
Transcriptional FactorsNot Available
Concentrations Data
Not Available
HMDB IDHMDB0059924
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB005820
KNApSAcK IDNot Available
Chemspider ID7521
KEGG Compound IDC06756
BioCyc IDCPD-1422
BiGG IDNot Available
Wikipedia LinkP-Xylene
METLIN IDNot Available
PubChem Compound7809
PDB IDNot Available
ChEBI ID27417
References
General References
  1. Rice S, Koziel JA: Characterizing the Smell of Marijuana by Odor Impact of Volatile Compounds: An Application of Simultaneous Chemical and Sensory Analysis. PLoS One. 2015 Dec 10;10(12):e0144160. doi: 10.1371/journal.pone.0144160. eCollection 2015. [PubMed:26657499 ]