3-Nitrobenzyl alcohol is the best substrate for cytosolic alcohol dehydrogenase. 3-Nitrobenzyl alcohol was employed as matrix during fast-atom bombardment mass spectrometry. It was used in isolation of palmitylated peptide fragment from bovine rhodopsin and its characterization by mass spectrometry. It has been used as a liquid matrix for fast atom bombardment[1] and matrix-assisted laser desorption ionization. In electrospray ionization 3-NBA is doped into low surface tension spray solvents to increase analyte charging.