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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
Data?1582752365
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
4-MethylisopropylbenzenePhytoBank
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
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
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]+129.61631661259
DarkChem[M-H]-129.84431661259
DeepCCS[M+H]+137.78830932474
DeepCCS[M-H]-133.96130932474
DeepCCS[M-2H]-171.37530932474
DeepCCS[M+Na]+146.91430932474
AllCCS[M+H]+123.832859911
AllCCS[M+H-H2O]+119.032859911
AllCCS[M+NH4]+128.332859911
AllCCS[M+Na]+129.532859911
AllCCS[M-H]-129.232859911
AllCCS[M+Na-2H]-130.932859911
AllCCS[M+HCOO]-132.832859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.6.86 minutes32390414
Predicted by Siyang on May 30, 202218.1053 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.66 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid39.9 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2203.4 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid685.6 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid264.9 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid461.4 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid348.5 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid803.4 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid757.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)231.4 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid1561.9 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid625.3 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1624.9 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid537.1 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid484.8 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate552.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA462.4 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water26.2 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
p-CymeneCC(C)C1=CC=C(C)C=C11283.2Standard polar33892256
p-CymeneCC(C)C1=CC=C(C)C=C11030.7Standard non polar33892256
p-CymeneCC(C)C1=CC=C(C)C=C11012.4Semi standard non polar33892256
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)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 ]