Record Information |
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Version | 5.0 |
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Status | Detected but not Quantified |
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Creation Date | 2021-09-11 17:55:21 UTC |
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Update Date | 2021-09-26 23:13:23 UTC |
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HMDB ID | HMDB0257186 |
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Secondary Accession Numbers | None |
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Metabolite Identification |
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Common Name | Retusin |
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Description | Tetramethylquercetin, also known as retusin, belongs to the class of organic compounds known as 7-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C7 atom of the flavonoid backbone. Thus, tetramethylquercetin is considered to be a flavonoid. Tetramethylquercetin has been detected, but not quantified in, common oreganos (Origanum vulgare) and mandarin orange (clementine, tangerine). This could make tetramethylquercetin a potential biomarker for the consumption of these foods. Tetramethylquercetin is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review very few articles have been published on Tetramethylquercetin. This compound has been identified in human blood as reported by (PMID: 31557052 ). Retusin is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Retusin is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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Structure | COC1=CC(O)=C2C(=O)C(OC)=C(OC2=C1)C1=CC=C(OC)C(OC)=C1 InChI=1S/C19H18O7/c1-22-11-8-12(20)16-15(9-11)26-18(19(25-4)17(16)21)10-5-6-13(23-2)14(7-10)24-3/h5-9,20H,1-4H3 |
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Synonyms | Value | Source |
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2-(3,4-Dimethoxyphenyl)-5-hydroxy-3,7-dimethoxy-4H-1-benzopyran-4-one | ChEBI | 3,3',4',7-O-Tetramethylquercetin | ChEBI | 3,3',4',7-Tetramethylquercetin | ChEBI | 3,7,3',4'-Tetramethylquercetin | ChEBI | Quercetin 3,3',4',7-tetramethyl ether | ChEBI | Quercetin 3,7,3',4'-tetramethyl ether | ChEBI | Retusin | ChEBI | Retusine | ChEBI | 5-Hydroxy-3,7,3',4'-tetramethoxyflavone | MetaCyc, MeSH | 3,7,3',4'-Tetra-O-methylquercetin | MetaCyc |
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Chemical Formula | C19H18O7 |
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Average Molecular Weight | 358.342 |
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Monoisotopic Molecular Weight | 358.10525293 |
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IUPAC Name | 2-(3,4-dimethoxyphenyl)-5-hydroxy-3,7-dimethoxy-4H-chromen-4-one |
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Traditional Name | retusin (flavonol) |
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CAS Registry Number | Not Available |
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SMILES | COC1=CC(O)=C2C(=O)C(OC)=C(OC2=C1)C1=CC=C(OC)C(OC)=C1 |
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InChI Identifier | InChI=1S/C19H18O7/c1-22-11-8-12(20)16-15(9-11)26-18(19(25-4)17(16)21)10-5-6-13(23-2)14(7-10)24-3/h5-9,20H,1-4H3 |
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InChI Key | HHGPYJLEJGNWJA-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as 7-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C7 atom of the flavonoid backbone. |
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Kingdom | Organic compounds |
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Super Class | Phenylpropanoids and polyketides |
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Class | Flavonoids |
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Sub Class | O-methylated flavonoids |
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Direct Parent | 7-O-methylated flavonoids |
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Alternative Parents | |
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Substituents | - 3p-methoxyflavonoid-skeleton
- 3-methoxyflavonoid-skeleton
- 4p-methoxyflavonoid-skeleton
- 7-methoxyflavonoid-skeleton
- Hydroxyflavonoid
- Flavone
- 5-hydroxyflavonoid
- 3-methoxychromone
- Chromone
- 1-benzopyran
- Benzopyran
- Dimethoxybenzene
- O-dimethoxybenzene
- Anisole
- Phenoxy compound
- Phenol ether
- Methoxybenzene
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Alkyl aryl ether
- Pyranone
- Monocyclic benzene moiety
- Benzenoid
- Pyran
- Vinylogous acid
- Heteroaromatic compound
- Organoheterocyclic compound
- Oxacycle
- Ether
- Organic oxide
- Organic oxygen compound
- Hydrocarbon derivative
- Organooxygen compound
- Aromatic heteropolycyclic compound
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Molecular Framework | Aromatic heteropolycyclic 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 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 - Retusin GC-MS (Non-derivatized) - 70eV, Positive | splash10-004l-0419000000-8001f334e7bd21c10638 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Retusin GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Retusin GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-05 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Retusin GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-05 | 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 - Retusin 10V, Positive-QTOF | splash10-0a4i-0009000000-95e43140d41719d30219 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Retusin 20V, Positive-QTOF | splash10-0a4i-0009000000-577082fa366951f488db | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Retusin 40V, Positive-QTOF | splash10-01dr-2966000000-bf2e0d3fb4407ec38faa | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Retusin 10V, Negative-QTOF | splash10-0a4i-0009000000-8a5664df7dbdeed5c497 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Retusin 20V, Negative-QTOF | splash10-0a4i-0029000000-3d02636a4b753879db62 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Retusin 40V, Negative-QTOF | splash10-02g5-1982000000-9cfa3016640c970c7261 | 2016-08-03 | Wishart Lab | View Spectrum |
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