CH3CH2CH2CH2CH2CH2CH3,庚烷
CH3CH2CH2CH2CH(CH3)2 2-甲基己烷
CH3CH2CH2CH(CH3)CH2CH3 3-甲基己烷
CH3CH(CH3)CH(CH3)CH2CH3 2,3-二甲基戊烷
CH3CH(CH3)CH2CH(CH3)CH3 2,4-二甲基戊烷
CH3C(CH3)2CH2CH2CH3 2,2-二甲基戊烷
CH3CH2C(CH3)2CH2CH3 3,3-二甲基戊烷
CH3CH2CH(CH2CH3)CH2CH3 2-乙基戊烷
CH3C(CH3)CH(CH3)2 2,2,3-三甲基丁烷