Pyridinetricarboxylic acid is a group of organic compounds which are tricarboxylic derivatives of pyridine. Pyridinetricarboxylic acid comes in several isomers:
2,3,4-Pyridinetricarboxylic acid 2,3,5-Pyridinetricarboxylic acid 2,3,6-Pyridinetricarboxylic acid Berberonic acid (2,4,5-Pyridinetricarboxylic acid) Collidinic acid (2,4,6-Pyridinetricarboxylic acid) 3,4,5-Pyridinetricarboxylic acid
All isomers share the molecular weight 211,13 g/mol and the chemical formula C8H5NO6.