C6H5CHO\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CHO}C6H5CHO
C6H3OH\mathrm{C}_{6} \mathrm{H}_{3} \mathrm{OH}C6H3OH
CH3CH2OH\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}CH3CH2OH
CH3COCH3\mathrm{CH}_{3} \mathrm{COCH}_{3}CH3COCH3