Name Condensed structure Methane(甲烷) CH4 甲基:- Methyl Ethane(乙烷) CH3CH3 Propane(丙烷) CH CH2CH3 Butane(丁烷) CH3(CH2)2CH Pentane CH3(CH2)3CH3 Hexane CH3(CH2)4CH Heptane CH3(CH2) CH Octane CH (CH2) CH3 Nonane CH3(CH2),CH3 Decane CH3(CH2)3CH3 Undecane CHCH,OCH Dodecane CH3(CH2)10 CH3Name Condensed Structure Methane（甲烷） CH4 Ethane（乙烷） CH3CH3 Propane（丙烷） CH3CH2CH3 Butane（丁烷） CH3 (CH2 ) 2CH3 Pentane CH3 (CH2 ) 3CH3 Hexane CH3 (CH2 ) 4CH3 Heptane CH3 (CH2 ) 5CH3 Octane CH3 (CH2 ) 6CH3 Nonane CH3 (CH2 ) 7CH3 Decane CH3 (CH2 ) 8CH3 Undecane CH3 (CH2 ) 9CH3 Dodecane CH3 (CH2 ) 10CH3 甲基: -Methyl