Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2009-01-29 12:50:38 UTC |
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Update Date | 2023-02-21 17:17:29 UTC |
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HMDB ID | HMDB0011603 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone |
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Description | 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (also known as NNK) is a potent tobacco-specific nitrosamine derived from nicotine. It plays a key role in human tobacco-related cancers (PMID:24830349 ). NNK is found in cured tobacco and is also produced during its burning or combustion in cigarettes. NNK is abundantly present in cigarette smoke (20-280 ng/cigarette). Electronic cigarettes (e-cigarettes) do not convert nicotine to NNK due to their lower operating temperatures. NNK is a procarcinogen. This means it must be activated by cytochrome P450 enzymes (CYP2A6 and CYP2B6) to become a carcinogen (PMID:24830349 ). NNK can also be activated by myeloperoxidase (MPO) and epoxide hydrolase (EPHX1). All activation processes lead to the formation of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol from NNK, which is called NNAL (PMID:24830349 ). NNAL can be detoxified via glucuronidation via glucuronidases. Once NNK is activated to NNAL, this compound initiates a cascade of signalling pathways (for example ERK1/2, NFκB, PI3K/Akt, MAPK, FasL, K-ras), resulting in uncontrolled cellular proliferation and tumorigenesis. NNK is known as a mutagen and can cause point mutations that affect cell growth proliferation and differentiation. NNK also targets the SULT1A1, TGF-beta, and angiotensin II genes. NNK plays a key role in gene silencing, gene modification, and carcinogenesis. NNK has been implicated in tumour promotion by activating nicotinic acetylcholine receptors (nAChRs) and β-adrenergic receptors (β-AdrRs), leading to downstream activation of parallel signal transduction pathways that facilitate tumour progression (PMID:24830349 ). Antioxidants such as EGCG (from green tea) inhibit lung tumorigenesis by NNK. |
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Structure | CN(CCCC(=O)C1=CN=CC=C1)N=O InChI=1S/C10H13N3O2/c1-13(12-15)7-3-5-10(14)9-4-2-6-11-8-9/h2,4,6,8H,3,5,7H2,1H3 |
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Synonyms | Value | Source |
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4-(N-Methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone | ChEBI | NNK | ChEBI | NNK (Carcinogen) | ChEBI | 4-(Methylnitrosoamino)-1-(3-pyridyl)-1-butanone | HMDB | 4'-(Nitrosomethylamino)-1-(3-pyridyl)-1-butanone | HMDB | NNK CPD | HMDB | 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanone | HMDB | 4-(Methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone | HMDB | 4-(Methylintrosamino)-1-(3-pyridyl)-1-butanone | HMDB | 4-(Methylnitrosoamino)-1-(3-pyridinyl)-1-butanone | HMDB | 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone | ChEBI |
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Chemical Formula | C10H13N3O2 |
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Average Molecular Weight | 207.2291 |
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Monoisotopic Molecular Weight | 207.100776675 |
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IUPAC Name | 4-[methyl(nitroso)amino]-1-(pyridin-3-yl)butan-1-one |
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Traditional Name | nnk (carcinogen) |
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CAS Registry Number | 64091-91-4 |
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SMILES | CN(CCCC(=O)C1=CN=CC=C1)N=O |
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InChI Identifier | InChI=1S/C10H13N3O2/c1-13(12-15)7-3-5-10(14)9-4-2-6-11-8-9/h2,4,6,8H,3,5,7H2,1H3 |
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InChI Key | FLAQQSHRLBFIEZ-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as aryl alkyl ketones. These are ketones have the generic structure RC(=O)R', where R = aryl group and R'=alkyl group. |
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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 | Aryl alkyl ketones |
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Alternative Parents | |
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Substituents | - Aryl alkyl ketone
- Pyridine
- Heteroaromatic compound
- Organic n-nitroso compound
- Organic nitroso compound
- Azacycle
- Organoheterocyclic compound
- Organic nitrogen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Organonitrogen compound
- Aromatic heteromonocyclic compound
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Molecular Framework | Aromatic heteromonocyclic 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 | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | 64 °C | 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 Kovats Retention IndicesUnderivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone GC-MS (Non-derivatized) - 70eV, Positive | splash10-0ab9-9800000000-57c49f29c9d7332bea22 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | 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 - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 10V, Positive-QTOF | splash10-0a4i-1980000000-6eed182d10c9a03751b7 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 20V, Positive-QTOF | splash10-0002-3910000000-5fed6b71985ed1afcab4 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 40V, Positive-QTOF | splash10-001m-9600000000-1c5f7245d666beff11f2 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 10V, Negative-QTOF | splash10-0a4i-3390000000-e76106f4b8f69d27d9aa | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 20V, Negative-QTOF | splash10-0a70-9840000000-3d022ffc7f1a61b3d6d0 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 40V, Negative-QTOF | splash10-056r-9100000000-1782fbf95a7044f769a6 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 10V, Positive-QTOF | splash10-0002-0920000000-1d8ea81c64d584ea02d1 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 20V, Positive-QTOF | splash10-0002-1900000000-63e35eaa2366ca02b75d | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 40V, Positive-QTOF | splash10-001i-7900000000-5f96473ea00e041d2dcc | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 10V, Negative-QTOF | splash10-0a4i-0090000000-482b470c4a0ac6884d93 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 20V, Negative-QTOF | splash10-0a6r-9820000000-35e475a0c732f383cc12 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone 40V, Negative-QTOF | splash10-00or-9300000000-37d4b4467865dbb44ac7 | 2021-09-24 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Experimental 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, experimental) | 2021-10-10 | Wishart Lab | View Spectrum | Experimental 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | 2012-12-05 | Wishart Lab | View Spectrum |
IR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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