N-(4-(4-(ethyl(heptyl)amino)-1-hydroxybutyl)phenyl)methanesulfonamide-D5 fumarate; N-(4-(4-(ethyl(heptyl)amino)-1-hydroxybutyl)phenyl)methanesulfonamide fumarate-d5; (+/-)-N-[4-[4-(Ethylheptylamino)-1-hydroxybutyl]phenyl]methanesulfonamide Fumarate-d5; Corvert-d5; U 70226E