CH3−CH2−Br\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{Br}CH3−CH2−Br
CH3−Br\mathrm{CH}_{3}-\mathrm{Br}CH3−Br
CH3−NH2\mathrm{CH}_{3}-\mathrm{NH}_{2}CH3−NH2
(CH3)3−CCl\left(\mathrm{CH}_{3}\right)_{3}-\mathrm{CCl}(CH3)3−CCl
