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Record Information
Version4.0
Creation Date2007-01-22 23:51:51 UTC
Update Date2017-09-27 08:24:38 UTC
HMDB IDHMDB0005805
Secondary Accession Numbers
  • HMDB05805
Metabolite Identification
Common Namep-Cymene
DescriptionCymene, or p-cymene, is a naturally occurring aromatic organic compound. It is classified as a hydrocarbon related to a monoterpene. Its structure consists of a benzene ring para-substituted with a methyl group and an isopropyl group. It is insoluble in water, but miscible with ethanol and ether. Cymene is a constituent of a number of essential oils, most commonly the oil of cumin and thyme. There are two less common geometric isomers. o-Cymene, in which the alkyl groups are ortho-substituted, and m-cymene, in which they are meta-substituted. p-Cymene is the only natural isomer. Cymene is common ligand for ruthenium. The parent compound is [(η6-cymene)MCl2]2. This [sandwich compound|half-sandwich compound is prepared by the reaction of ruthenium trichloride with the terpene α-phellandrene. The osmium complex is also known (Wikipedia).
Structure
Thumb
Synonyms
ValueSource
1-Isopropyl-4-methylbenzeneChEBI
1-Methyl-4-(1-methylethyl)benzeneChEBI
1-Methyl-4-(propan-2-yl)benzeneChEBI
1-Methyl-4-isopropylbenzeneChEBI
4-CymeneChEBI
4-Isopropyl-1-methylbenzeneChEBI
4-IsopropyltolueneChEBI
4-Methyl-1-isopropylbenzeneChEBI
CymeneChEBI
IsopropyltolueneChEBI
P-CimeneChEBI
P-CymolChEBI
P-IsopropyltolueneChEBI
P-MethylcumeneChEBI
P-MethylisopropylbenzeneChEBI
Para-cymeneChEBI
1-Isopropyl-4-methyl-benzeneHMDB
1-Methyl-4-(1-methylethyl)-benzeneHMDB
2-P-TolylpropaneHMDB
4-Isopropylbenzyl radicalHMDB
4-Methyl-1-(propan-2-yl)benzeneHMDB
CamphogenHMDB
CymolHMDB
DolcymeneHMDB
P- IsopropylmethylbenzeneHMDB
P-Mentha-1,3,5-trieneHMDB
P-Methyl cumeneHMDB
P-Methyl-cumeneHMDB
ParacymeneHMDB
ParacymolHMDB
Chemical FormulaC10H14
Average Molecular Weight134.222
Monoisotopic Molecular Weight134.109550451
IUPAC Name1-methyl-4-(propan-2-yl)benzene
Traditional Namecymene
CAS Registry Number99-87-6
SMILES
CC(C)C1=CC=C(C)C=C1
InChI Identifier
InChI=1S/C10H14/c1-8(2)10-6-4-9(3)5-7-10/h4-8H,1-3H3
InChI KeyHFPZCAJZSCWRBC-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as aromatic monoterpenoids. These are monoterpenoids containing at least one aromatic ring.
KingdomChemical entities
Super ClassOrganic compounds
ClassLipids and lipid-like molecules
Sub ClassPrenol lipids
Direct ParentAromatic monoterpenoids
Alternative Parents
Substituents
  • Monocyclic monoterpenoid
  • Aromatic monoterpenoid
  • P-cymene
  • Phenylpropane
  • Cumene
  • Toluene
  • Benzenoid
  • Monocyclic benzene moiety
  • Aromatic hydrocarbon
  • Unsaturated hydrocarbon
  • Hydrocarbon
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
Disposition

Biological Location:

  Subcellular:

  Biofluid and excreta:

Source:

  Biological:

    Plant:

Route of exposure:

  Enteral:

Process

Naturally occurring process:

  Biological process:

    Cellular process:

    Chemical reaction:

    Biochemical process:

    Biochemical pathway:

Role

Indirect biological role:

Industrial application:

Biological role:

Physical Properties
StateGas
Experimental Properties
PropertyValueReference
Melting Point-68.9 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.023 mg/mL at 25 °CNot Available
LogP4.10HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
Water Solubility0.017 g/LALOGPS
logP4.17ALOGPS
logP3.73ChemAxon
logS-3.9ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity45.29 m³·mol⁻¹ChemAxon
Polarizability17 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - EI-Bsplash10-014i-4900000000-f403355796ccc97b5011View in MoNA
GC-MSGC-MS Spectrum - EI-Bsplash10-014i-3900000000-18fab12c9b06d75f28d4View in MoNA
GC-MSGC-MS Spectrum - EI-Bsplash10-001i-0900000000-146f5d56238ffde0a8d0View in MoNA
GC-MSGC-MS Spectrum - CI-Bsplash10-007x-4900000000-14f27e732fc9b57e0b12View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-94c1bdcd85003d97aefcView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2900000000-5ed611e91a5f86fc7019View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0gbc-9700000000-f812cd4b0a2fcb99f91aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0900000000-3043af674a7adea6117aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0900000000-589b3edc66f090e075e5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00lu-4900000000-9166f98044ef814ac56bView in MoNA
MSMass Spectrum (Electron Ionization)splash10-014i-4900000000-c8d4189d8e9f124c75adView in MoNA
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid Locations
  • Saliva
  • Urine
Tissue LocationNot Available
PathwaysNot Available
NameSMPDB/PathwhizKEGG
No entries found
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
SalivaDetected but not Quantified Adult (>18 years old)Not SpecifiedNormal details
UrineDetected but not Quantified Adult (>18 years old)BothNormal details
UrineDetected but not Quantified Adult (>18 years old)BothNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected but not Quantified Adult (>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 IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB017358
KNApSAcK IDC00003040
Chemspider ID7183
KEGG Compound IDC06575
BioCyc IDCPD-1001
BiGG IDNot Available
Wikipedia LinkP-cymene
METLIN IDNot Available
PubChem Compound7463
PDB IDMML
ChEBI ID28768
References
Synthesis ReferenceFevre, Catherine G. Le; Fevre, Raymond J. W. Le; Robertson, Kathleen W. Dipole moments of p-cymene, 2- and 3-halogeno-pcymenes, carvacrol and thymol, p-ethyltoluene, p-tert-butyltoluene, 1,3-dimethyl-5-tert-butylbenzene, tert-butyl-benzene and its p-nitro
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Thompson JD, Chalchat JC, Michet A, Linhart YB, Ehlers B: Qualitative and quantitative variation in monoterpene co-occurrence and composition in the essential oil of Thymus vulgaris chemotypes. J Chem Ecol. 2003 Apr;29(4):859-80. [PubMed:12775148 ]
  2. Nishio T, Patel A, Wang Y, Lau PC: Biotransformations catalyzed by cloned p-cymene monooxygenase from Pseudomonas putida F1. Appl Microbiol Biotechnol. 2001 Apr;55(3):321-5. [PubMed:11341314 ]