21695-93-2 AIDS-125288 AIDS125288 NSC66793 N~1~,N~4~-Bis(4-(4,5-dihydro-1H-imidazol-2-ylamino)phenyl)-2-(hydroxy(oxido)amino)terephthalamide Terephthalanilide, 4',4''-bis(2-imidazolin-2-ylamino)-2-nitro-, dihydrochloride, hydrate