2248-34-2 4-(Morpholin-4-yl)benzenediazonium tetrafluoroborate 4-Morpholinobenzenediazonium tetrafluoroborate 4-Morpholinyl benzene diazonium fluoborate Benzenediazonium, 4-(4-morpholinyl)-, tetrafluoroborate(1-) EINECS 218-839-8