134720-07-3 BRN 4877935 CCRIS 4205 Methanesulfonamide, N-(4-(1-hydroxy-2-((1-methylethyl)nitrosoamino)ethyl)phenyl)- N-(4-(1-Hydroxy-2-((1-methylethyl)nitrosoamino)ethyl)phenyl)methanesulfonamide N-Nitrososotalol