| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2013-03-20 21:10:29 UTC |
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| Update Date | 2019-07-31 22:49:29 UTC |
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| HMDB ID | HMDB0059924 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | p-Xylene |
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| Description | p-Xylene, also known as p-methyltoluene or para-xylene, 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. p-Xylene is possibly neutral. Outside of the human body, p-Xylene is found, on average, in the highest concentration within black walnuts. p-Xylene has also been detected, but not quantified in, several different foods, such as parsley, green bell peppers, pepper (c. frutescens), cauliflowers, and yellow bell peppers. This could make p-xylene a potential biomarker for the consumption of these foods. The p stands for para, identifying the location of the methyl groups as across from one another. p-Xylene is a potentially toxic compound. For skin contact, the skin should be washed with soap and water. When there is expression of muscarinic overstimulation due to excess acetylcholine at muscarinic acetylcholine receptors symptoms of visual disturbances, tightness in chest, wheezing due to bronchoconstriction, increased bronchial secretions, increased salivation, lacrimation, sweating, peristalsis, and urination can occur. |
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| Structure | InChI=1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3 |
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| Synonyms | | Value | Source |
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| 1,4-Dimethylbenzene | ChEBI | | 1,4-Dimethylbenzol | ChEBI | | 4-Methyltoluene | ChEBI | | 4-Xylene | ChEBI | | p-Dimethylbenzene | ChEBI | | p-Methyltoluene | ChEBI | | p-Xylol | ChEBI | | PARA-xylene | ChEBI | | 1,4-Xylene | HMDB | | Paraxylene | HMDB |
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| Chemical Formula | C8H10 |
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| Average Molecular Weight | 106.165 |
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| Monoisotopic Molecular Weight | 106.07825032 |
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| IUPAC Name | 1,4-xylene |
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| Traditional Name | para-xylene |
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| CAS Registry Number | Not Available |
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| SMILES | CC1=CC=C(C)C=C1 |
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| InChI Identifier | InChI=1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3 |
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| InChI Key | URLKBWYHVLBVBO-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| 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. |
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| Kingdom | Organic compounds |
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| Super Class | Benzenoids |
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| Class | Benzene and substituted derivatives |
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| Sub Class | Xylenes |
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| Direct Parent | p-Xylenes |
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| Alternative Parents | |
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| Substituents | - P-xylene
- 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 | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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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. | 5.47 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 15.8473 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.96 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1873.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 606.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 240.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 422.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 304.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 660.5 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 | 688.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 361.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1361.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 562.0 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 | 1429.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 456.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 433.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 567.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 378.6 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 | 59.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| Spectra |
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| Biological Properties |
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| Cellular Locations | - Membrane (predicted from logP)
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| Biospecimen Locations | |
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| Tissue Locations | Not Available |
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| Pathways | |
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| Normal Concentrations |
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| Breath | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | | Saliva | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Not Specified | Normal | | details |
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| Abnormal Concentrations |
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| Breath | Detected but not Quantified | Not Quantified | Children (1-13 years old) | Not Specified | Asthma | | details | | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Campylobacter jejuni infection | | details | | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Clostridium difficile infection | | details | | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Ulcerative Colitis | | details |
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| Associated Disorders and Diseases |
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| Disease References | | Asthma |
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- Dallinga JW, Robroeks CM, van Berkel JJ, Moonen EJ, Godschalk RW, Jobsis Q, Dompeling E, Wouters EF, van Schooten FJ: Volatile organic compounds in exhaled breath as a diagnostic tool for asthma in children. Clin Exp Allergy. 2010 Jan;40(1):68-76. doi: 10.1111/j.1365-2222.2009.03343.x. Epub 2009 Sep 28. [PubMed:19793086 ]
| | Ulcerative colitis |
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- Garner CE, Smith S, de Lacy Costello B, White P, Spencer R, Probert CS, Ratcliffe NM: Volatile organic compounds from feces and their potential for diagnosis of gastrointestinal disease. FASEB J. 2007 Jun;21(8):1675-88. Epub 2007 Feb 21. [PubMed:17314143 ]
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| Associated OMIM IDs | |
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| External Links |
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| DrugBank ID | Not Available |
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| Phenol Explorer Compound ID | Not Available |
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| FooDB ID | FDB005820 |
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| KNApSAcK ID | Not Available |
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| Chemspider ID | 7521 |
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| KEGG Compound ID | C06756 |
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| BioCyc ID | CPD-1422 |
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| BiGG ID | Not Available |
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| Wikipedia Link | P-Xylene |
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| METLIN ID | Not Available |
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| PubChem Compound | 7809 |
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| PDB ID | Not Available |
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| ChEBI ID | 27417 |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Not Available |
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| MarkerDB ID | Not Available |
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| Good Scents ID | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| Material Safety Data Sheet (MSDS) | Not Available |
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| General References | - Schneider CJ, Moubaraki B, Cashion JD, Turner DR, Leita BA, Batten SR, Murray KS: Spin crossover in di-, tri- and tetranuclear, mixed-ligand tris(pyrazolyl)methane iron(II) complexes. Dalton Trans. 2011 Jul 14;40(26):6939-51. doi: 10.1039/c0dt01725f. Epub 2011 Jun 6. [PubMed:21643603 ]
- Grunder S, Valente C, Whalley AC, Sampath S, Portmann J, Botros YY, Stoddart JF: Molecular gauge blocks for building on the nanoscale. Chemistry. 2012 Dec 3;18(49):15632-49. doi: 10.1002/chem.201201985. Epub 2012 Oct 22. [PubMed:23090871 ]
- Latrache H, El GA, Karroua M, Hakkou A, Ait MH, El BA, Bourlioux P: Relations between hydrophobicity tested by three methods and surface chemical composition of Escherichia coli. New Microbiol. 2002 Jan;25(1):75-82. [PubMed:11837394 ]
- Lyons TW, Guironnet D, Findlater M, Brookhart M: Synthesis of p-xylene from ethylene. J Am Chem Soc. 2012 Sep 26;134(38):15708-11. Epub 2012 Sep 13. [PubMed:22934909 ]
- Grunder S, Stoddart JF: Giving substance to the Losanitsch series. Chem Commun (Camb). 2012 Mar 28;48(26):3158-60. doi: 10.1039/c2cc17734j. Epub 2012 Feb 16. [PubMed:22343755 ]
- Svecova V, Topinka J, Solansky I, Sram RJ: Personal exposure to volatile organic compounds in the Czech Republic. J Expo Sci Environ Epidemiol. 2012 Sep;22(5):455-60. doi: 10.1038/jes.2012.30. Epub 2012 Jun 6. [PubMed:22669500 ]
- Kirimura K, Nakagawa H, Tsuji K, Matsuda K, Kurane R, Usami S: Selective and continuous degradation of carbazole contained in petroleum oil by resting cells of Sphingomonas sp. CDH-7. Biosci Biotechnol Biochem. 1999 Sep;63(9):1563-8. [PubMed:10540744 ]
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