Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2013-06-18 18:41:54 UTC |
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Update Date | 2023-02-21 17:30:08 UTC |
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HMDB ID | HMDB0060665 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Isonicotinic acid |
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Description | Isonicotinic acid, also known as 4-carboxypyridine or gamma-picolinic acid, belongs to the class of organic compounds known as pyridinecarboxylic acids. Pyridinecarboxylic acids are compounds containing a pyridine ring bearing a carboxylic acid group. Isonicotinic acid is a moderately basic compound (based on its pKa). Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. The carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid (Wikipedia ). It is an isomer of nicotinic acid. Isonicotinic acid is a metabolite of isoniazid. |
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Structure | InChI=1S/C6H5NO2/c8-6(9)5-1-3-7-4-2-5/h1-4H,(H,8,9) |
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Synonyms | Value | Source |
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4-Carboxypyridine | ChEBI | 4-Pyridinecarboxylic acid | ChEBI | gamma-Picolinic acid | ChEBI | gamma-Pyridinecarboxylic acid | ChEBI | p-Pyridinecarboxylic acid | ChEBI | 4-Pyridinecarboxylate | Generator | g-Picolinate | Generator | g-Picolinic acid | Generator | gamma-Picolinate | Generator | Γ-picolinate | Generator | Γ-picolinic acid | Generator | g-Pyridinecarboxylate | Generator | g-Pyridinecarboxylic acid | Generator | gamma-Pyridinecarboxylate | Generator | Γ-pyridinecarboxylate | Generator | Γ-pyridinecarboxylic acid | Generator | p-Pyridinecarboxylate | Generator | Isonicotinate | Generator | Acid, isonicotinic | HMDB | Acids, isonicotinic | HMDB | Isonicotinic acids | HMDB |
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Chemical Formula | C6H5NO2 |
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Average Molecular Weight | 123.1094 |
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Monoisotopic Molecular Weight | 123.032028409 |
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IUPAC Name | pyridine-4-carboxylic acid |
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Traditional Name | isonicotinic acid |
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CAS Registry Number | 55-22-1 |
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SMILES | OC(=O)C1=CC=NC=C1 |
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InChI Identifier | InChI=1S/C6H5NO2/c8-6(9)5-1-3-7-4-2-5/h1-4H,(H,8,9) |
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InChI Key | TWBYWOBDOCUKOW-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as pyridinecarboxylic acids. Pyridinecarboxylic acids are compounds containing a pyridine ring bearing a carboxylic acid group. |
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Kingdom | Organic compounds |
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Super Class | Organoheterocyclic compounds |
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Class | Pyridines and derivatives |
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Sub Class | Pyridinecarboxylic acids and derivatives |
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Direct Parent | Pyridinecarboxylic acids |
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Alternative Parents | |
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Substituents | - Pyridine carboxylic acid
- Heteroaromatic compound
- Azacycle
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic nitrogen compound
- Organic oxygen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- 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 | 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 IndicesUnderivatizedDerivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-053r-0900000000-0e8b37e56297b7672e67 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-0540-0900000000-0673678e5fc7980445bd | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-0569-5900000000-26eb2a99def38d4a22c8 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-053r-0900000000-0e8b37e56297b7672e67 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-0540-0900000000-0673678e5fc7980445bd | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Isonicotinic acid GC-EI-TOF (Non-derivatized) | splash10-0569-5900000000-26eb2a99def38d4a22c8 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Isonicotinic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-05fr-7900000000-0cb296f8039d0be2482a | 2017-09-20 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Isonicotinic acid GC-MS (1 TMS) - 70eV, Positive | splash10-05fr-9600000000-b1182d94bed173f36102 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Isonicotinic acid 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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Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , negative-QTOF | splash10-004i-9300000000-5aefad19534388180436 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOF | splash10-0ab9-0900000000-3f8ad29d172aa06e19c6 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOF | splash10-00di-4900000000-04ecd2ded01bc6f9b466 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOF | splash10-001j-9100000000-b7a02f2f133138354546 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOF | splash10-003r-9000000000-ee099e60544c0326fdb7 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QQ , positive-QTOF | splash10-00os-9000020000-f6daab3d1a982cfd35ec | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , positive-QTOF | splash10-00di-4900000000-c7fa977839a809bc26c9 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid LC-ESI-QTOF , positive-QTOF | splash10-003s-9100000000-187ccf119a0f683d93d0 | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid 30V, Positive-QTOF | splash10-003s-9100000000-187ccf119a0f683d93d0 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOF | splash10-00di-0900000000-f4662ceafd587b9b6077 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOF | splash10-0ugi-9000000000-8e1d2e76371c68d4ffd2 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOF | splash10-008a-9300000000-b2562aafef5b27aaf06f | 2021-09-20 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOF | splash10-00di-0900000000-86289259e4a7d42b1524 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOF | splash10-00di-2900000000-ac2510c19cbda2467e17 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOF | splash10-0ue9-9100000000-96f139c16425aa89406b | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Negative-QTOF | splash10-00di-3900000000-5d743650a7f30a929686 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Negative-QTOF | splash10-00b9-9500000000-e02450efac27b686ff39 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Negative-QTOF | splash10-004i-9000000000-2a4f9a6c9a5c17833568 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Positive-QTOF | splash10-05ai-6900000000-354dfc313106a4b42d69 | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Positive-QTOF | splash10-0a4i-5900000000-4b667bfa85606aed0c8f | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Positive-QTOF | splash10-004i-9000000000-a99a61d126a314ed38dd | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 10V, Negative-QTOF | splash10-004i-9000000000-c2850ce6846335b0374d | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 20V, Negative-QTOF | splash10-004i-9000000000-c2850ce6846335b0374d | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Isonicotinic acid 40V, Negative-QTOF | splash10-004i-9000000000-c2850ce6846335b0374d | 2021-10-12 | 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+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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