2.1.4 Nomenclature CH CHCH,CH,CH Pentane CH3CHCH2CH3 isopentane, 2-methylbutane CH CH3 CH3CCH3 neopentane, 2, 2-dimethylpropane CH32.1.4 Nomenclature ◼ CH3CH2CH2CH2CH3 Pentane ◼ CH3CHCH2CH3 isopentane, 2-methylbutane ◼ CH3 ◼ CH3 ◼ CH3CCH3 neopentane, 2,2-dimethylpropane ◼ CH3