However, Perkin claimed (without citing a source) that Chevreul had isolated luteolin as early as 1814–1815. See: Perkin, Arthur George· Everest, Arthur Ernest (1918). The Natural Organic Colouring Matters. London, England: Longmans, Green and Co. σελ. 4.
books.google.com
Chevreul, M.E. (1829). «30e Leçon, Chapitre XI. De la Gaude. [30th lesson. Chapter 11. On Weld (i.e., the plant Reseda luteola, which provides a yellow dye)]». Leçons de Chimie Appliquée à la Teinture [Lessons on Chemistry Applied to Dyeing] (στα French). Paris, France: Pichon et Didier. σελίδες 143–148.CS1 maint: Μη αναγνωρίσιμη γλώσσα (link) Chevreul named luteolin on p. 144: "J'ai fait des recherches sur la composition de la gaude, j'ai obtenu le principe colorant critalisé par sublimation; je l'ai nommé lutéolin." (I have done some research on the composition of weld; I obtained the principal colorant [which I] crystallized via sublimation; I have called it "luteolin".)
