4-Pyridinecarboxylic acid; p-Pyridinecarboxylic acid; 4-Picolinic acid
|Jmol 3D model||Interactive image|
|Molar mass||123.11 g/mol|
|Appearance||White to off-white crystalline solid|
|Melting point||310 °C (590 °F; 583 K) (sublimes)|
|nicotinic acid, pyridine|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Isonicotinic acid or 4-pyridinecarboxylic 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 has the carboxyl group at the 2nd and 3rd position respectively compared to the 4-position for nicotinic acid.
Isonicotinic acids is a term loosely used for derivatives of isonicotinic acid. Examples include:
- Isonicotinic acid at chemicalland21.com