Any of eight isomeric fluid alcohols (C5H11.OH), transparent, colorless liquids. It's the hydroxide of amyl. Also known as amylic liquor. The amyl liquor obtained from fusel oil is mainly isoamyl alcoholic beverages (3-methyl-1-butanol or 1-hydroxy-3-methylbutane), with sec-amyl alcoholic beverages (2-methyl-1-butanol or 2-pentanol), and it has a characteristic unusual odor. Other than n-amyl alcoholic beverages (also called 1-pentanol) the other isomeric pentanols aren't often refered to as amyl liquor. The amyl liquor blend in fusel oil forms a colorless fluid with a peculiar cough-exciting smell and burning taste. It really is utilized as a source of amyl substances, such as for instance amyl acetate, amyl nitrite, etc.