| Record Information |
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| Version | 2.0 |
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| Created at | 2006-08-13 09:35:11 UTC |
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| Updated at | 2021-10-07 20:41:31 UTC |
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| NP-MRD ID | NP0000822 |
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| Secondary Accession Numbers | |
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| Natural Product Identification |
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| Common Name | Alpha-Terpineol |
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| Description | Alpha-Terpineol (CAS: 98-55-5) Is a naturally occurring monoterpene alcohol that has been isolated from a variety of sources such as cajuput oil, pine oil, and petitgrain oil. There are three isomers of terpineol, alpha-, beta-, and gamma-terpineol, with the last two differing only by the location of the double bond. Terpineol is usually a mixture of these isomers with alpha-terpineol as the major constituent. Terpineol has a pleasant odour similar to lilac and is a common ingredient in perfumes, cosmetics, and flavours. Alpha-Terpineol is occasionally found as a volatile component in urine. It is a water-soluble component of Melaleuca alternifolia Cheel, the tea tree oil (TTO). Alpha-Terpineol is a likely mediator of the in vitro and in vivo activity of the TTO as an agent that could control C. Albicans vaginal infections. Purified alpha-terpineol can suppress pro-inflammatory mediator production by activated human monocytes. Alpha-Terpineol is able to impair the growth of human M14 melanoma cells and appear to be more effective on their resistant variants, which express high levels of P-glycoprotein in the plasma membrane, overcoming resistance to caspase-dependent apoptosis exerted by P-glycoprotein-positive tumour cells (PMID: 5556886 , 17083732 , 11131302 , 15009716 ). |
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| Structure | CC1=CC[C@@H](CC1)C(C)(C)O InChI=1S/C10H18O/c1-8-4-6-9(7-5-8)10(2,3)11/h4,9,11H,5-7H2,1-3H3/t9-/m0/s1 |
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| Synonyms | | Value | Source |
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| (+)-p-Menth-1-en-8-ol | ChEBI | | (1R)-alpha,alpha,4-Trimethyl-3-cyclohexene-1-methanol | ChEBI | | (R)-alpha,alpha,4-Trimethylcyclohex-3-ene-1-methanol | ChEBI | | (R)-alpha-Terpineol | ChEBI | | (+)-alpha-Terpineol | Kegg | | (1R)-a,a,4-Trimethyl-3-cyclohexene-1-methanol | Generator | | (1R)-Α,α,4-trimethyl-3-cyclohexene-1-methanol | Generator | | (R)-a,a,4-Trimethylcyclohex-3-ene-1-methanol | Generator | | (R)-Α,α,4-trimethylcyclohex-3-ene-1-methanol | Generator | | (R)-a-Terpineol | Generator | | (R)-Α-terpineol | Generator | | (+)-a-Terpineol | Generator | | (+)-Α-terpineol | Generator | | a-Terpineol | Generator | | Α-terpineol | Generator | | (6R)-p-Menth-1-en-8-ol | HMDB | | (R)-(+)-alpha-Terpineol | HMDB | | (R)-2-(4-Methyl-3-cyclohexenyl)isopropanol | HMDB | | (R)-p-Menth-1-en-8-ol | HMDB | | (S)-(-)-p-Menth-1-en-8-ol | HMDB | | 1-alpha-Terpineol | HMDB | | 2-(4-Methyl-3-cyclohexen-1-yl)-2-propanol | HMDB | | 2-(4-Methylcyclohex-3-en-1-yl)propan-2-ol | HMDB | | 2-(4-Methylcyclohex-3-enyl)propan-2-ol (alpha-terpineol) | HMDB | | 2-[(1R)-4-Methylcyclohex-3-en-1-yl]propan-2-ol | HMDB | | alpha,alpha,4-Trimethyl-3-cyclohexene-1-methanol | HMDB | | alpha-Terpinenol | HMDB | | alpha-Terpineole | HMDB | | alpha-Terpinol | HMDB | | L-alpha-Terpineol | HMDB | | Lily OF valley | HMDB | | Terpenol | HMDB | | Terpineol | HMDB | | Terpineol schlechthin | HMDB | | DL-alpha-Terpineol | HMDB | | alpha-Terpineol, sodium salt | HMDB | | p-Menth-1-en-8-ol | HMDB | | D-alpha-Terpineol | HMDB | | (S)-a-Terpineol | HMDB | | (S)-Α-terpineol | HMDB | | alpha-Terpineol | MeSH |
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| Chemical Formula | C10H18O |
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| Average Mass | 154.2493 Da |
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| Monoisotopic Mass | 154.13577 Da |
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| IUPAC Name | 2-[(1R)-4-methylcyclohex-3-en-1-yl]propan-2-ol |
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| Traditional Name | (+)-α-terpineol |
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| CAS Registry Number | 98-55-5 |
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| SMILES | CC1=CC[C@@H](CC1)C(C)(C)O |
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| InChI Identifier | InChI=1S/C10H18O/c1-8-4-6-9(7-5-8)10(2,3)11/h4,9,11H,5-7H2,1-3H3/t9-/m0/s1 |
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| InChI Key | WUOACPNHFRMFPN-VIFPVBQESA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 600 MHz, CD3OD, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Predicted Spectra |
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| Not Available | | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | |
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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
- Tertiary alcohol
- Organic oxygen compound
- Hydrocarbon derivative
- Organooxygen compound
- Alcohol
- Aliphatic homomonocyclic compound
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| Molecular Framework | Aliphatic homomonocyclic compounds |
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| External Descriptors | |
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| Physical Properties |
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| State | Solid |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | 37.5 °C | Not Available | | Boiling Point | 217.50 °C. @ 760.00 mm Hg (est) | The Good Scents Company Information System | | Water Solubility | 0.71 mg/mL at 25 °C | Not Available | | LogP | 2.98 | Li, J., Perdue, E.M. (1995) Physicochemical properties of selected monoterpenes. Pre-print Extended Abstract, Presented Before The Division of Environmental Chemistry, Amer Chem Soc, Anaheim, Ca: April 2-7 |
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| Predicted Properties | |
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| General References | - Hart PH, Brand C, Carson CF, Riley TV, Prager RH, Finlay-Jones JJ: Terpinen-4-ol, the main component of the essential oil of Melaleuca alternifolia (tea tree oil), suppresses inflammatory mediator production by activated human monocytes. Inflamm Res. 2000 Nov;49(11):619-26. [PubMed:11131302 ]
- (). 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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