4,4'-Oxydibenzamidine bis(2-hydroxyethanesulphonate) 620-90-6 EINECS 210-657-7 Ethanesulfonic acid, 2-hydroxy-, compd. with 4,4'-oxybis(benzenecarboximidamide) (2:1) (9CI) Ethanesulfonic acid, 2-hydroxy-, compd. with 4,4'-oxydibenzamidine (2:1) (8CI) NSC 174867 Phenamidine isethionate