Pyridinetricarboxylic acid is a group of organic compounds which are tricarboxylic derivatives of pyridine. Pyridinetricarboxylic acid comes in several isomers:
| Common Name | Berberonic acid | Collidinic acid | |||||
| Systematic Name | 2,3,4-Pyridinetricarboxylic acid | 2,3,5-Pyridinetricarboxylic acid | 2,3,6-Pyridinetricarboxylic acid | 2,4,5-Pyridinetricarboxylic acid | 2,4,6-Pyridinetricarboxylic acid | 3,4,5-Pyridinetricarboxylic acid | |
| Structural Formula | |||||||
| CAS Registry Number | 632-95-1 | 116668-76-9 | 490-28-8 | 536-20-9 | 632-94-0 |