title: Undecylic acid
text: # Undecylic acid
  
  Undecylic acid (systematically named undecanoic acid) is a carboxylic acid with chemical formula $CH_3(CH_2)_9COOH.$ It is often used as an antifungal agent, to treat ringworm and athlete's foot, for example. Like decanoic acid, it has a distinctive, unpleasant odor.
  
  