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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2007-01-22 23:51:51 UTC
Update Date2022-03-07 02:49:29 UTC
HMDB IDHMDB0005805
Secondary Accession Numbers
  • HMDB05805
Metabolite Identification
Common Namep-Cymene
DescriptionCymene, or p-cymene also known as p-cymol or isopropyltoluene, 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 a common ligand for ruthenium.
Structure
Thumb
Synonyms
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
Description Belongs to the class of organic compounds known as aromatic monoterpenoids. These are monoterpenoids containing at least one aromatic ring.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassMonoterpenoids
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
Physiological effect
Disposition
Biological locationRoute of exposureSource
Process
Role
Physical Properties
StateLiquid
Experimental Molecular Properties
PropertyValueReference
Melting Point-68.9 °CNot Available
Boiling Point176.00 to 178.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility0.023 mg/mL at 25 °CNot Available
LogP4.10HANSCH,C ET AL. (1995)
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Saliva
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
SalivaDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Not SpecifiedNormal details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothBreast cancer details
Associated Disorders and Diseases
Disease References
Perillyl alcohol administration for cancer treatment
  1. Silva CL, Passos M, Camara JS: Solid phase microextraction, mass spectrometry and metabolomic approaches for detection of potential urinary cancer biomarkers--a powerful strategy for breast cancer diagnosis. Talanta. 2012 Jan 30;89:360-8. doi: 10.1016/j.talanta.2011.12.041. Epub 2011 Dec 22. [PubMed:22284503 ]
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB017358
KNApSAcK IDC00003040
Chemspider ID7183
KEGG Compound IDC06575
BioCyc IDCPD-1001
BiGG IDNot Available
Wikipedia LinkP-cymene
METLIN IDNot Available
PubChem Compound7463
PDB IDNot Available
ChEBI ID28768
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1032712
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)Not Available
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 ]