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Quinolinic acid (abbreviated QUIN or QA), also known as pyridine-2,3-dicarboxylic acid, is a dicarboxylic acid with a pyridine backbone. It is a colorless solid. It is the biosynthetic precursor to nicotine
Q 1265 (OTTO) Quinolinic acid, 99%+ Cas no 89-00-9 - used as a potent endogenous excitant at amino acid receptors in CNS.