$CH_3-CH_2-CH_2-CH_2-CH_2OH$ (pentan-1-ol)
$CH_3-CH(OH)-CH_2-CH_2-CH_3$ (pentan-2-ol)
$CH_3-CH_2-CH(OH)-CH_2-CH_3$ (pentan-3-ol)
$CH_2OH-CH(CH_3)-CH_2-CH_3$ (2-metylbutan-1-ol)
$(CH_3)_2C(OH)-CH_2-CH_3$ (2-metylbutan-2-ol)
$CH_3-CH(CH_3)-CH(OH)-CH_3$ (3-metylbutan-2-ol)
$CH_3-CH(CH_3)-CH_2-CH_2OH$ (3-metylbutan-1-ol)
$(CH_3)_3C-CH_2OH$ (2,2-đimetylpropan-1-ol)