Any of several isomers of the alcohol C5H11OH; the principal constituents of oil.
pentan-1-ol
pentan-2-ol
pentan-3-ol
2-methylbutan-1-ol
3-methylbutan-1-ol
3-methylbutan-2-ol (2 stereoisomers)
2,2-dimethylpropan-1-ol
(l)