C19H19NO4

The molecular formula C19H19NO4 (molar mass: 325.35 g/mol, exact mass: 325.131408 u) may refer to:


 * Amurensine, an alkaloid found in some Papaver species
 * Bulbocapnine, an alkaloid
 * Cheilanthifoline, an alkaloid found in Corydalis dubia
 * Domesticine
 * Ro67-4853