Capsaicin Structure Bumper Sticker

(from Wikipedia) Capsaicin /?kæp'se??.s?n/ (8-methyl-N-vanillyl-6-nonenamide) is the active component of chilli peppers, which are plants belonging to the genus Capsicum. It is an irritant for mammals, including humans, and produces a sensation of burning in any tissue with which it comes into contact. Capsaicin and several related compounds are called capsaicinoids and are produced as a secondary metabolite by chilli peppers, probably as deterrents against herbivores. Pure capsaicin is a hydrophobic, colourless, odourless, crystalline to waxy compound.