1-Nitrosoazetidine 15216-10-1 5-20-01-00147 (Beilstein Handbook Reference) AZETIDINE, 1-NITROSO- BRN 0106316 CCRIS 5586 N-Nitrosazetidine N-Nitrosoazetidine N-Nitrosotrimethyleneimine NSC 223081 Nitroso-azetidin [German] Nitrosoazetidine Nitrosotrimethyleneimine