Lutidinic acid (pyridine-2,4-dicarboxylic acid) is a heterocyclic organic compound, more precisely a heteroaromatic. It belongs to the group of pyridine dicarboxylic acids and consists of a pyridine ring which carries two carboxy groups in the 2- and 4-position.Richard Wolffenstein: Die Pflanzenalkaloide, 3. Auflage, Berlin 1922, S. 67 ()
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