CH3-CH2-CH2-CH2-CH2-OH H3C-CH2-CH2-CH(OH)-CH3 H3C-CH2-CH(OH)-CH2-CH3 CH3-CH(CH3)-CH2-CH2-OH CH3-CH2-CH(CH3)-CH2-OH CH3-CH2-CH2-CH(CH3)-OH CH3-CH(CH3)-CH(OH)-CH3 H3C-CH2-C(OH)(CH3)-CH3 (CH3)3-H2C-OH