title: C4H9NO2
text: # C4H9NO2
  
  The molecular formula $C_4H_9NO_2$ (molar mass: 103.12 g/mol) may refer to:
  
  * α-Aminobutyric acid
  * β-Aminobutyric acid
  * γ-Aminobutyric acid (GABA)
  * 2-Aminoisobutyric acid
  * 3-Aminoisobutyric acid
  * Nitroisobutane
  * n-Nitrobutane
  * Butyl nitrite
  * Dimethylglycine
  * Isobutyl nitrite
  