27918-79-2 4-(Diethylamino)-2-ethoxybenzenediazonium tetrafluoroborate 4-Diethylamino-2-ethoxybenzenediazonium tetrafluoroborate 584-59-8 Benzenediazonium, 4-(diethylamino)-2-ethoxy-, tetrafluoroborate(1-) EINECS 209-540-3