1) Alcohol 2) Butyl alcohol 3) Experimental biofuel 4) Fuel derivable from biomass 
An alcohol containing four carbon atoms. Example: 1-butanol. 
Butanol (also butyl alcohol) refers to a four-carbon alcohol with a formula of C4H9OH. There are four possible isomeric structures for butanol, from a straight-chain primary alcohol to a branched-chain tertiary alcohol. It is primarily used as a solvent, as an intermediate in chemical synthesis, and as a fuel. It is sometimes also called biobutano...
C4H10O Molar mass: 74.1216
Preferred chemical name for n-butyl alcohol. ... (05 Mar 2000) ... 
Type: Term Pronunciation: byū′tă-nol Definitions: 1. Preferred chemical name for N-butyl alcohol.
This organic compound (also 1-butanol, butan-1-ol, butyl alcohol) is a monohydric alcohol. It is produced from the fusel oils as a by-product of fermentation.
An alcohol containing four carbon atoms. Derived from butane that is used in organic synthesis and as a solvent.