CH3−CHO\mathrm{CH}_{3}-\mathrm{CHO}CH3−CHO
C6H5−CHO\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CHO}C6H5−CHO
CH3CCl2−CHO\mathrm{CH}_{3} \mathrm{CCl}_{2}-\mathrm{CHO}CH3CCl2−CHO
(CH3)3−CHO\left(\mathrm{CH}_{3}\right)_{3}-\mathrm{CHO}(CH3)3−CHO