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
Common NameBerberonic acidCollidinic acidSystematic Name2,3,4-Pyridinetricarboxylic acid2,3,5-Pyridinetricarboxylic acid2,3,6-Pyridinetricarboxylic acid2,4,5-Pyridinetricarboxylic acid2,4,6-Pyridinetricarboxylic acid3,4,5-Pyridinetricarboxylic acidStructural FormulaCAS Registry Number632-95-1116668-76-9490-28-8536-20-9632-94-0 All isomers share the molecular weight 211,13 g/mol and the chemical formula C8H5NO6.