| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2007-01-22 23:51:51 UTC |
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| Update Date | 2022-03-07 02:49:29 UTC |
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| HMDB ID | HMDB0005805 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | p-Cymene |
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| Description | Cymene, 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. |
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| Structure | InChI=1S/C10H14/c1-8(2)10-6-4-9(3)5-7-10/h4-8H,1-3H3 |
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| Synonyms | | Value | Source |
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| 1-Isopropyl-4-methylbenzene | ChEBI | | 1-Methyl-4-(1-methylethyl)benzene | ChEBI | | 1-Methyl-4-(propan-2-yl)benzene | ChEBI | | 1-Methyl-4-isopropylbenzene | ChEBI | | 4-Cymene | ChEBI | | 4-Isopropyl-1-methylbenzene | ChEBI | | 4-Isopropyltoluene | ChEBI | | 4-Methyl-1-isopropylbenzene | ChEBI | | Cymene | ChEBI | | Isopropyltoluene | ChEBI | | p-Cimene | ChEBI | | p-Cymol | ChEBI | | p-Isopropyltoluene | ChEBI | | p-Methylcumene | ChEBI | | p-Methylisopropylbenzene | ChEBI | | Para-cymene | ChEBI | | 1-Isopropyl-4-methyl-benzene | HMDB | | 1-Methyl-4-(1-methylethyl)-benzene | HMDB | | 2-p-Tolylpropane | HMDB | | 4-Isopropylbenzyl radical | HMDB | | 4-Methyl-1-(propan-2-yl)benzene | HMDB | | Camphogen | HMDB | | Cymol | HMDB | | Dolcymene | HMDB | | P- Isopropylmethylbenzene | HMDB | | P-Mentha-1,3,5-triene | HMDB | | P-Methyl cumene | HMDB | | P-Methyl-cumene | HMDB | | Paracymene | HMDB | | Paracymol | HMDB | | 4-Methylisopropylbenzene | PhytoBank |
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| Chemical Formula | C10H14 |
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| Average Molecular Weight | 134.222 |
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| Monoisotopic Molecular Weight | 134.109550451 |
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| IUPAC Name | 1-methyl-4-(propan-2-yl)benzene |
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| Traditional Name | cymene |
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| CAS Registry Number | 99-87-6 |
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| SMILES | CC(C)C1=CC=C(C)C=C1 |
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| InChI Identifier | InChI=1S/C10H14/c1-8(2)10-6-4-9(3)5-7-10/h4-8H,1-3H3 |
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| InChI Key | HFPZCAJZSCWRBC-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as aromatic monoterpenoids. These are monoterpenoids containing at least one aromatic ring. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Prenol lipids |
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| Sub Class | Monoterpenoids |
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| Direct Parent | Aromatic monoterpenoids |
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| Alternative Parents | |
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| Substituents | - Monocyclic monoterpenoid
- Aromatic monoterpenoid
- P-cymene
- Phenylpropane
- Cumene
- Toluene
- Benzenoid
- Monocyclic benzene moiety
- Aromatic hydrocarbon
- Unsaturated hydrocarbon
- Hydrocarbon
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | |
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| Disposition | |
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| Process | |
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| Role | |
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| Physical Properties |
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| State | Liquid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | -68.9 °C | Not Available | | Boiling Point | 176.00 to 178.00 °C. @ 760.00 mm Hg | The Good Scents Company Information System | | Water Solubility | 0.023 mg/mL at 25 °C | Not Available | | LogP | 4.10 | HANSCH,C ET AL. (1995) |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| 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 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 18.1053 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.66 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 39.9 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2203.4 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 685.6 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 264.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 461.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 348.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 803.4 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 757.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 231.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1561.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 625.3 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1624.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 537.1 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 484.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 552.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 462.4 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 26.2 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| Synthesis Reference | Fevre, 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 |
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| General References | - 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 ]
- 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 ]
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