Record Information |
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Version | 5.0 |
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Status | Detected but not Quantified |
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Creation Date | 2014-10-08 15:57:16 UTC |
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Update Date | 2023-02-21 17:30:34 UTC |
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HMDB ID | HMDB0061916 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Phenylglyoxal |
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Description | Phenylglyoxal belongs to the class of organic compounds known as phenylacetaldehydes. Phenylacetaldehydes are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde. Phenylglyoxal was first prepared by thermal decomposition of the sulfite derivative of the oxime:C6H5C(O)CH(NOSO2H) + 2 H2O → C6H5C(O)CHO + NH4HSO4More conveniently, it can be prepared from methyl benzoate by reaction with KCH2S(O)CH3 to give PhC(O)CH(SCH3)(OH), which is oxidized with copper(II) acetate. It has been used as a reagent to modify the amino acid, arginine. Phenylglyoxal is an extremely weak basic (essentially neutral) compound (based on its pKa). Phenylglyoxal is the organic compound with the formula C6H5C(O)C(O)H. Phenylglyoxal exists in all living organisms, ranging from bacteria to humans. It is yellow liquid when anhydrous but readily forms a colorless crystalline hydrate. Upon heating, this polymer "cracks" to give back the yellow aldehyde. It contains both an aldehyde and a ketone functional group. Dissolution of phenylglyoxal in water gives crystals of the hydrate: C6H5C(O)COH + H2O → C6H5C(O)CH(OH)2Upon heating, the hydrate loses water and regenerates the anhydrous liquid. Alternatively, it can also be prepared by oxidation of acetophenone with selenium dioxide. It has also been used to attach chemical payload (probes) to the amino acid citrulline and to peptides/proteins. Like some other aldehydes, phenylglyoxal polymerizes upon standing, as indicated by solidification of the liquid. |
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Structure | InChI=1S/C8H6O2/c9-6-8(10)7-4-2-1-3-5-7/h1-6H |
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Synonyms | Value | Source |
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Phenylglyoxal | MeSH |
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Chemical Formula | C8H6O2 |
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Average Molecular Weight | 134.132 |
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Monoisotopic Molecular Weight | 134.036779436 |
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IUPAC Name | 2-oxo-2-phenylacetaldehyde |
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Traditional Name | phenylglyoxal |
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CAS Registry Number | Not Available |
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SMILES | O=CC(=O)C1=CC=CC=C1 |
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InChI Identifier | InChI=1S/C8H6O2/c9-6-8(10)7-4-2-1-3-5-7/h1-6H |
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InChI Key | OJUGVDODNPJEEC-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as phenylacetaldehydes. Phenylacetaldehydes are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde. |
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Kingdom | Organic compounds |
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Super Class | Benzenoids |
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Class | Benzene and substituted derivatives |
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Sub Class | Phenylacetaldehydes |
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Direct Parent | Phenylacetaldehydes |
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Alternative Parents | |
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Substituents | - Phenylacetaldehyde
- Aryl ketone
- Benzoyl
- Alpha-ketoaldehyde
- Ketone
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aldehyde
- Aromatic homomonocyclic compound
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Molecular Framework | Aromatic homomonocyclic 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 - Phenylglyoxal GC-MS (Non-derivatized) - 70eV, Positive | splash10-0a4i-1900000000-feebf6828b7d7a986412 | 2017-09-20 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Phenylglyoxal 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 - Phenylglyoxal 10V, Positive-QTOF | splash10-000i-0900000000-0da9863845ac80a79bc4 | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 20V, Positive-QTOF | splash10-000i-2900000000-3993b9e36bd0e1df8f8a | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 40V, Positive-QTOF | splash10-004i-9000000000-9e6afa995f5f44145d2e | 2015-04-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 10V, Negative-QTOF | splash10-001i-0900000000-72cf846fa012eba48134 | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 20V, Negative-QTOF | splash10-001i-4900000000-a9525c4588c184fbddcd | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 40V, Negative-QTOF | splash10-004i-9000000000-b9f50b78ecb7cc2a2402 | 2015-04-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 10V, Positive-QTOF | splash10-0550-3900000000-a5702883d5a5ca5a6183 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 20V, Positive-QTOF | splash10-0a6r-4900000000-860717ec8d54f5e8e4d1 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 40V, Positive-QTOF | splash10-004i-9100000000-fbc40c541fd66ff3470d | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 10V, Negative-QTOF | splash10-0a59-0900000000-b3d6c02c7001060eb967 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 20V, Negative-QTOF | splash10-057i-4900000000-9eece03c1aa0314a585e | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenylglyoxal 40V, Negative-QTOF | splash10-004i-9000000000-28ca63be4b8994c5b32c | 2021-09-24 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-24 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-24 | 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]+) | 2023-02-04 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-04 | FELIX lab | View Spectrum |
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