C6H5−OH\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{OH}C6H5−OH
CH3−C≡CH\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CH}CH3−C≡CH
CH3−CH=CH2\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}_{2}CH3−CH=CH2