• An ester is a derivative of a carboxylic acid in which the hydrogen atom of the hydroxyl group has been replaced with an alkyl group.
  • Esters are very commonly found in plants and are responsible for many distinctive odors and flavors.
  • For example, methyl salicylate has the odor and flavor of oil of wintergreen, while propyl ethanoate has that of a pear.
  • The steps for naming esters along with two examples are shown below.
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