Record Information |
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Version | 5.0 |
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Status | Detected but not Quantified |
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Creation Date | 2012-09-11 22:14:18 UTC |
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Update Date | 2022-03-07 02:55:08 UTC |
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HMDB ID | HMDB0036995 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | alpha-Terpinene |
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Description | Alpha-Terpinene is one of four isomers of terpinene (the other three being beta terpinene, gamma terpenine, and delta terpinine or terpimolene) that differ in the position of carbon-carbon double bonds. Alpha-Terpinene belongs to the class of organic compounds known as menthane monoterpenes. These are monoterpenes with a structure based on the o-, m-, or p-menthane backbone. p-Menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. alpha-Terpinene is a naturally occurring monoterpene found in allspice, cardamom, and marjoram. alpha-Terpinene is a constituent of many essential oils with oil from Litsea ceylanica being is a major source (20%) of it. alpha-Terpinene has been found in Citrus, Eucalyptus and Juniperus species, and cannabis plants (PMID:6991645 ). ±-Terpinene is a flavouring agent and is produced industrially by acid-catalyzed rearrangement of ±-pinene. It has perfume and flavoring properties but is mainly used to confer a pleasant odor to industrial fluids. |
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Structure | InChI=1S/C10H16/c1-8(2)10-6-4-9(3)5-7-10/h4,6,8H,5,7H2,1-3H3 |
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Synonyms | Value | Source |
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1-Isopropyl-4-methyl-1,3-cyclohexadiene | ChEBI | 1-Methyl-4-(1-methylethyl)-1,3-cyclohexadiene | ChEBI | p-Mentha-1,3-diene | ChEBI | Terpilene | ChEBI | a-Terpinene | Generator | Α-terpinene | Generator | 1-Isopropyl-4-methyl-cyclohexa-1,3-diene | HMDB | 1-Isopropyl-4-methylcyclohexa-1,3-diene | HMDB | 1-Methyl-4-(propan-2-yl)cyclohexa-1,3-diene | HMDB | 1-Methyl-4-isopropyl-1,3-cyclohexadiene | HMDB | 1-Methyl-4-isopropylcyclohexadiene-1,3 | HMDB | alpha -Terpinene | HMDB | FEMA 3558 | HMDB | 1,4-p-Menthadiene | HMDB | beta-Terpinene | HMDB | gamma-Terpinene | HMDB | 4-Isopropyl-1-methyl-1,3-cyclohexadiene | PhytoBank | alpha-Terpinen | PhytoBank | α-Terpinen | PhytoBank | alpha-Terpinene | PhytoBank |
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Chemical Formula | C10H16 |
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Average Molecular Weight | 136.238 |
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Monoisotopic Molecular Weight | 136.125200515 |
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IUPAC Name | 1-methyl-4-(propan-2-yl)cyclohexa-1,3-diene |
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Traditional Name | terpinene |
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CAS Registry Number | 99-86-5 |
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SMILES | CC(C)C1=CC=C(C)CC1 |
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InChI Identifier | InChI=1S/C10H16/c1-8(2)10-6-4-9(3)5-7-10/h4,6,8H,5,7H2,1-3H3 |
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InChI Key | YHQGMYUVUMAZJR-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as menthane monoterpenoids. These are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. |
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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 | Menthane monoterpenoids |
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Alternative Parents | |
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Substituents | - P-menthane monoterpenoid
- Monocyclic monoterpenoid
- Branched unsaturated hydrocarbon
- Cyclic olefin
- Unsaturated aliphatic hydrocarbon
- Unsaturated hydrocarbon
- Olefin
- Hydrocarbon
- Aliphatic homomonocyclic compound
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Molecular Framework | Aliphatic 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 | Not Available |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | |
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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 Kovats Retention IndicesUnderivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental GC-MS | GC-MS Spectrum - alpha-Terpinene EI-B (Non-derivatized) | splash10-006x-9500000000-e60fb974334faa2cf625 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - alpha-Terpinene EI-B (Non-derivatized) | splash10-00du-6900000000-41fde84dbd73528ad68f | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - alpha-Terpinene EI-B (Non-derivatized) | splash10-006x-9500000000-e60fb974334faa2cf625 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - alpha-Terpinene EI-B (Non-derivatized) | splash10-00du-6900000000-41fde84dbd73528ad68f | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - alpha-Terpinene GC-EI-Q (Non-derivatized) | splash10-006x-9500000000-e78a04a46a017816d9f9 | 2020-07-08 | HMDB team, MONA, MassBank | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - alpha-Terpinene GC-MS (Non-derivatized) - 70eV, Positive | splash10-006x-9300000000-9e298f76f2606ff289fa | 2016-09-22 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - alpha-Terpinene GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | MS | Mass Spectrum (Electron Ionization) | splash10-0096-9400000000-322df4fdc907d6ef5f6f | 2015-03-01 | Not Available | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 10V, Positive-QTOF | splash10-000i-2900000000-52130a4409b06401c277 | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 20V, Positive-QTOF | splash10-000i-9700000000-349bdb9de1ad5c9d7917 | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 40V, Positive-QTOF | splash10-1000-9100000000-4f3636bfa36656ebc350 | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 10V, Negative-QTOF | splash10-000i-0900000000-954e07bd601b6ad95425 | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 20V, Negative-QTOF | splash10-000i-0900000000-e41a6714348b3249ddac | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 40V, Negative-QTOF | splash10-014u-5900000000-9a9e0414dcb34d920983 | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 10V, Positive-QTOF | splash10-000j-9600000000-17d717eb220781ad4cc1 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 20V, Positive-QTOF | splash10-0536-9100000000-3f771329175d59bc664c | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 40V, Positive-QTOF | splash10-00mo-9000000000-68b4409b06699bad322f | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 10V, Negative-QTOF | splash10-000i-0900000000-a013b4ae27f975ab5621 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 20V, Negative-QTOF | splash10-000i-0900000000-a013b4ae27f975ab5621 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - alpha-Terpinene 40V, Negative-QTOF | splash10-00kf-9400000000-20ffbcb6b8f03ba79f67 | 2021-09-24 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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General References | - Parveen M, Hasan MK, Takahashi J, Murata Y, Kitagawa E, Kodama O, Iwahashi H: Response of Saccharomyces cerevisiae to a monoterpene: evaluation of antifungal potential by DNA microarray analysis. J Antimicrob Chemother. 2004 Jul;54(1):46-55. Epub 2004 Jun 16. [PubMed:15201226 ]
- Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
- Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
- Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
- Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
- Turner CE, Elsohly MA, Boeren EG: Constituents of Cannabis sativa L. XVII. A review of the natural constituents. J Nat Prod. 1980 Mar-Apr;43(2):169-234. doi: 10.1021/np50008a001. [PubMed:6991645 ]
- (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
- Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.
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