(1,1'-Biphenyl)-4,4'-disulfonamide, N,N'-bis(phenylsulfonyl)- 4,4'-Biphenyldisulfonamide, N,N'-bis(phenylsulfonyl)- 7218-46-4 EINECS 230-614-6 N,N'-Bis(phenylsulfonyl)-4,4'-biphenyldisulfonimide N,N'-Bis(phenylsulphonyl)biphenyl-4,4'-disulphonamide NSC 525224