| Isonicotinic acid[1] | |
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Pyridine-4-carboxylic acid |
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Other names
4-Pyridinecarboxylic acid; p-Pyridinecarboxylic acid; 4-Picolinic acid |
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| Identifiers | |
| CAS number | 55-22-1 |
| PubChem | 5922 |
| ChemSpider | 5709 |
| UNII | Y8SYN761TQ |
| KEGG | C07446 |
| ChEBI | CHEBI:6032 |
| ChEMBL | CHEMBL1203 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C6H5NO2 |
| Molar mass | 123.11 g/mol |
| Appearance | White to off-white crystalline solid |
| Density | Solid |
| Melting point |
310 °C (sublimes) |
| Related compounds | |
| Related compounds | nicotinic acid, pyridine |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. It is an isomer of nicotinic acid — the carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid.
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Isonicotinic acids is a term loosely used for derivatives of isonicotinic acid. Examples include: