4,4'-(Tetraethyldiamino)benzophenone 4,4'-Bis(N,N-diethylamino)benzophenone 4,4'-Bis(diethylamino)benzophenone 90-93-7 Benzophenone, 4,4'-bis(diethylamino)- Methanone, bis[4-(diethylamino)phenyl]- Michler's ethyl ketone NSC36365 p,p'-(Tetraethyldiamino)benzophenone p,p'-Bis(diethylamino)benzophenone