Pyridinecarboxylic acids

Pyridinecarboxylic acid is a group of organic compounds which are monocarboxylic derivatives of pyridine. Pyridinecarboxylic acid comes in three isomers:

* Picolinic acid (2-pyridinecarboxylic acid)
* Nicotinic acid (3-pyridinecarboxylic acid), also known as Niacin
* Isonicotinic acid (4-pyridinecarboxylic acid)

Common Name  | Picolinic acid | Nicotinic acid/Niacin | Isonicotinic acid

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Systematic Name | 2-pyridinecarboxylic acid  | 3-pyridinecarboxylic acid  | 4-pyridinecarboxylic acid
Structural Formula |  |  |
CAS Registry Number | 98-98-6  | 59-67-6  | 55-22-1

All isomers share the molecular weight 123,11 g/mol and the chemical formula C6H5NO2.

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