Alvimopan Impurity 9

Chemical Name: 3-(1,3,6-trimethyl-1,2,3,6-tetrahydropyridin-4-yl)phenol

Synonym: Citalopram ketone (USP) ;4-(Dimethylamino)-1-[(1RS)-1-[3- (dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2- benzofuran-5-yl]butan-1-one ;