A pyridinecarboxylic acid is any member of 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 |
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.