In chemistry , the pyridinedicarboxylic acids form a substance group of organic compounds which belongs to the heterocycles (more precisely, heteroaromatics ). They consist of a pyridine ring , which is substituted by two carboxy groups (-COOH).
P 4817 (OTTO) 3,4-Pyridinedicarboxylic acid, 97% Cas 490-11-9 - used in the prevention and therapy of atherosclerotic degradation of arterial walls.