| Record Information |
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| Version | 2.0 |
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| Created at | 2022-04-29 06:13:00 UTC |
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| Updated at | 2022-04-29 06:13:00 UTC |
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| NP-MRD ID | NP0085737 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | alpha-Damascone |
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| Description | 1-(2,6,6-Trimethylcyclohex-2-en-1-yl)but-2-enone, also known as alpha-damascone or TMCHB, belongs to the class of organic compounds known as enones. Enones are compounds containing the enone functional group, with the structure RC(=O)CR'. An enone with a trimethylcyclohexenyl substituent at C-1. alpha-Damascone is found in Rhynchosia minima . alpha-Damascone was first documented in 1991 (PMID: 16348390). 1-(2,6,6-Trimethylcyclohex-2-en-1-yl)but-2-enone is an extremely weak basic (essentially neutral) compound (based on its pKa) (PMID: 12581281) (PMID: 15575784) (PMID: 18031884) (PMID: 18031900). |
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| Structure | [H]\C(C)=C(\[H])C(=O)C1C(C)=CCCC1(C)C InChI=1S/C13H20O/c1-5-7-11(14)12-10(2)8-6-9-13(12,3)4/h5,7-8,12H,6,9H2,1-4H3/b7-5+ |
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| Synonyms | | Value | Source |
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| 1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-2-butenone | ChEBI | | 1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-trans-2-buten-1-one | ChEBI | | 4-(2,6,6-Trimethyl-2-cyclohexenyl)-2-buten-4-one | ChEBI | | alpha-Damascone | ChEBI | | TMCHB | ChEBI | | a-Damascone | Generator | | Α-damascone | Generator |
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| Chemical Formula | C13H20O |
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| Average Mass | 192.3020 Da |
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| Monoisotopic Mass | 192.15142 Da |
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| IUPAC Name | (2E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one |
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| Traditional Name | α-damascone |
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| CAS Registry Number | Not Available |
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| SMILES | [H]\C(C)=C(\[H])C(=O)C1C(C)=CCCC1(C)C |
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| InChI Identifier | InChI=1S/C13H20O/c1-5-7-11(14)12-10(2)8-6-9-13(12,3)4/h5,7-8,12H,6,9H2,1-4H3/b7-5+ |
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| InChI Key | CRIGTVCBMUKRSL-FNORWQNLSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | 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 enones. Enones are compounds containing the enone functional group, with the structure RC(=O)CR'. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbonyl compounds |
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| Direct Parent | Enones |
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| Alternative Parents | |
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| Substituents | - Enone
- Acryloyl-group
- Ketone
- Organic oxide
- Hydrocarbon derivative
- 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 | Not Available |
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| Experimental 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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| Predicted Properties | |
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| General References | - Schoch E, Benda I, Schreier P: Bioconversion of alpha-Damascone by Botrytis cinerea. Appl Environ Microbiol. 1991 Jan;57(1):15-8. doi: 10.1128/aem.57.1.15-18.1991. [PubMed:16348390 ]
- Gimenez-Arnau A, Gimenez-Arnau E, Serra-Baldrich E, Lepoittevin JP, Camarasa JG: Principles and methodology for identification of fragrance allergens in consumer products. Contact Dermatitis. 2002 Dec;47(6):345-52. doi: 10.1034/j.1600-0536.2002.470606.x. [PubMed:12581281 ]
- Bovolenta M, Castronovo F, Vadala A, Zanoni G, Vidari G: A simple and efficient highly enantioselective synthesis of alpha-ionone and alpha-damascone. J Org Chem. 2004 Dec 10;69(25):8959-62. doi: 10.1021/jo049012j. [PubMed:15575784 ]
- Lapczynski A, Lalko J, McGinty D, Bhatia S, Letizia CS, Api AM: Fragrance material review on cis-alpha-damascone. Food Chem Toxicol. 2007;45 Suppl 1:S188-91. doi: 10.1016/j.fct.2007.09.054. Epub 2007 Sep 14. [PubMed:18031884 ]
- Lapczynski A, Lalko J, McGinty D, Bhatia S, Letizia CS, Api AM: Fragrance material review on alpha-damascone. Food Chem Toxicol. 2007;45 Suppl 1:S179-87. doi: 10.1016/j.fct.2007.09.044. Epub 2007 Sep 14. [PubMed:18031900 ]
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