Wiktionary
n. (context chemistry English) any compound, of general formula R2C=NNR2, formally derived from an aldehyde or ketone by replacing the carbonyl group with =NNH2 or derivative
Wikipedia
Hydrazones are a class of organic compounds with the structure =. They are related to ketones and aldehydes by the replacement of the oxygen with the functional group. They are formed usually by the action of hydrazine on ketones or aldehydes.
Usage examples of "hydrazone".
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.