Isonicotinic acid
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Names | |||
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Preferred IUPAC name Pyridine-4-carboxylic acid | |||
Other names Isonicotinic acid 4-Pyridinecarboxylic acid p-Pyridinecarboxylic acid 4-Picolinic acid | |||
Identifiers | |||
CAS Number |
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3D model (JSmol) |
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ChEBI |
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ChEMBL |
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ChemSpider |
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ECHA InfoCard | 100.000.208 ![]() | ||
KEGG |
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PubChem CID |
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UNII |
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CompTox Dashboard (EPA) |
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InChI
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Properties | |||
Chemical formula | C6H5NO2 | ||
Molar mass | 123.111 g·mol−1 | ||
Appearance | White to off-white crystalline solid | ||
Density | Solid | ||
Melting point | 310 °C (590 °F; 583 K) (sublimes) | ||
Hazards | |||
NFPA 704 (fire diamond) | ![]() 3 1 0 | ||
Safety data sheet (SDS) | http://datasheets.scbt.com/sc-250188.pdf | ||
Related compounds | |||
Related compounds | nicotinic acid, pyridine isoniazid | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ![]() ![]() ![]() Infobox references |
Chemical compound
Isonicotinic acid or pyridine-4-carboxylic acid is an organic compound with the formula C5H4N(CO2H). It is a derivative of pyridine with a carboxylic acid substituent at the 4-position. It is an isomer of picolinic acid and nicotinic acid, which have the carboxyl group at the 2- and 3-position respectively compared to the 4-position for isonicotinic acid.
Derivatives
Isonicotinic acids is a term loosely used for derivatives of isonicotinic acid. Hydrazide derivatives include isoniazid, iproniazid, and nialamide. Amide and ester derivatives include ethionamide and dexamethasone isonicotinate.
See also
References
- ^ Isonicotinic acid at chemicalland21.com
External links
- Isonicotinic+Acids at the U.S. National Library of Medicine Medical Subject Headings (MeSH)