1-(4-Pyridyl)-1-butanone 1-BUTANONE, 1-(4-PYRIDYL)- 1701-71-9 4-Butyrylpyridine 5-21-07-00437 (Beilstein Handbook Reference) BRN 0117155 Ketone, propyl 4-pyridyl Propyl 4-pyridyl ketone Pyridine, 4-butyryl-