. . . . . . . . . "experimental"@en . . . . . . . "89-00-9"@en . . . . . . "A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated CSF levels of quinolinic acid are correlated with the severity of neuropsychological deficits in patients who have AIDS. [PubChem]"@en . "Quinolinic Acid"@en . . . . . . . . . . "Robert W. J. Rebhahn, James E. Kassner, Raymond E. Werner, \"Process for preparing quinolinic acid.\" U.S. Patent US4537971, issued March, 1945."@en . . . . . . . . . . . .