CH3 CH2 oh CH m/z=58 C= CH2 C CH2+=CH2 CH2 CH2 CH3 m/z=100 CH3 C O CH2 CH2 CH2 CH H2C H2C H CH3 C OH H2C CH2 CH CH2 CH3 CH CH2 C OH CH2 H3C H2C CH2 m/z=100 m/z=58 H H CH3