21906-90-1 4-(Diethylamino)benzenediazonium hexafluorophosphate 733-51-7 Benzenediazonium, 4-(diethylamino)-, hexafluorophosphate(1-) Benzenediazonium, p-(diethylamino)-, hexafluorophosphate(1-) EINECS 211-993-7 NSC 155214 p-Diazonium-N,N-diethylaniline, hexafluorophosphate p-Diazonium-N,N-diethylaniline, hexafluorophosphoric acid salt