title: C4H6O
text: # C4H6O
  
  The molecular formula $C_4H_6O$ may refer to:
  
  * Crotonaldehyde
  * Cyclobutanone
  * Dihydrofurans
     * 2,3-Dihydrofuran
     * 2,5-Dihydrofuran
  * Divinyl ether
  * Methacrolein
  * Methyl vinyl ketone
  