357424-07-8

4,6,7,8,9,10-Hexahydro-6,10-methano-1H-pyrazino[2,3-h][3]benzazepine-2,3-dione is an impurity of Varenicline Tartrate (V098490), which is a nicotinic a4b2 acetylcholine receptor partial agonist and used to aid in smoking cessation.