Wiktionary
n. (context organic compound English) An aromatic ketone, ''9-oxo-xanthene'', that is used as an insecticide.
Wikipedia
Xanthone is an organic compound with the molecular formula CHO. It can be prepared by the heating of phenyl salicylate. In 1939, xanthone was introduced as an insecticide and it currently finds uses as ovicide for codling moth eggs and as a larvicide. Xanthone is also used in the preparation of xanthydrol, which is used in the determination of urea levels in the blood.
Usage examples of "xanthone".
Nitroso Dye-stuffs -- Nitro Dye-stuffs -- Azo Dye-stuffs -- Substantive Cotton Dye-stuffs -- Azoxystilbene Dye-stuffs -- Hydrazones -- Ketoneimides -- Triphenylmethane Dye-stuffs -- Rosolic Acid Dye-stuffs -- Xanthene Dye-stuffs -- Xanthone Dye-stuffs -- Flavones -- Oxyketone Dye-stuffs -- Quinoline and Acridine Dye-stuffs -- Quinonimide or Diphenylamine Dye-stuffs -- The Azine Group: Eurhodines, Safranines and Indulines -- Eurhodines -- Safranines -- Quinoxalines -- Indigo -- Dye-stuffs of Unknown Constitution -- Sulphur or Sulphine Dye stuffs -- Development of the Artificial Dye-stuff Industry -- The Natural Dye-stuffs -- Mineral Colours -- Index.