yl ethyl ketone (mek), etiam quae methyl ethyl (methyl) ketone, 2-butanone, vel butanone, summus finis est oxygenii continens solvendo. ob solidam solubilitatem, euaporationem celeris rate, toxicitatem humilem, stabilitatem bonam, yl ethyl keton solvens maxime adhibetur ut solvens polyurethane, nitrocelluloso, resina vinyl, et coatings.