Chelidonic acid was first discovered in extracts of Chelidonium majus.[4][5][6] It occurs naturally in plants of the
Asparagales order.[7] Potassium chelidonate has been found to be responsible for
nyctinasty in some plants; specifically, it has been found to regulate the closing of leaves of Cassia mimosoides at nightfall.[8][9]
^G. Horvath; C. Russa; Z. Koentoes; J. Gerencser (1999). "A new Efficient Method for the Preparation of 2,6-Pyridinedihiethyl Ditosylates from Dimethyl 2,60-Pyridinedicarboxylates". Synth. Commun. 29 (21): 3719–3732.
doi:
10.1080/00397919908086011.
^Weygand, Conrad (1972). Hilgetag, G.; Martini, A. (eds.). Weygand/Hilgetag Preparative Organic Chemistry (4th ed.). New York: John Wiley & Sons, Inc. p. 1009.
ISBN0471937495.
^See also: Lerch, Joseph Udo (1846)
"Untersuchung der Chelidonsäure" (Investigation of chelidonic acid), Annalen der Chemie und Pharmacie, 57 : 273–318.