3-Chloro-4-(1-pyrrolidinyl)benzenediazonium tetrafluoroborate 53934-41-1 Benzenediazonium, 3-chloro-4-(1-pyrrolidinyl)-, tetrafluoroborate(1-) EINECS 258-874-6 N-(4-Diazonio-2-chlorophenyl)pyrrolidine borofluoride