Гексан (n-C6H14): CH3-CH2-CH2-CH2-CH2-CH32-метилпентан (2-Methylpentane): CH3-CH(CH3)-CH2-CH2-CH32,2-диметилбутан (2,2-Dimethylbutane): CH3-CH(CH3)-CH(CH3)-CH33-метилпентан (3-Methylpentane): CH3-CH2-CH(CH3)-CH2-CH3