1,?2-?Dihydro-?2-?oxo-4-?quinolinecarboxylic Acid is a chemical constituent of vinegar Schisandra chinensis and is used as a indicator reagent in marking security documents.
參考文獻
Chen, P., et al.: Zhongyaocai, 34, 1728 (2011); Kuryatnikov, A.B., et al.: Russ., RU 2581882 C1 20160420 (2016)