Rupatadine Impurity 2
Rupatadine Fumarate IMP 3-((4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidin-1-yl)methyl)-5-methyl-1-((5-methylpyridin-3-yl)methyl)pyridin-1-ium