title: Chromane
text: # Chromane
  
  Chromane (benzodihydropyran) is a heterocyclic chemical compound with the chemical formula $C_9H_{10}O.$ Chromane is a structural feature of more complex compounds including E vitamins (tocopherols and tocotrienols), Dianin's compound, and the pharmaceutical drugs troglitazone, ormeloxifene, and nebivolol. Such compounds are sometimes described as chromans.
  
  