1-Nitroso-3,5-dimethylpiperazine 3,5-Dimethyl-1-nitrosopiperazine 5-23-03-00333 (Beilstein Handbook Reference) 67774-31-6 BRN 0509433 CCRIS 1372 N-Nitroso-3,5-dimethylpiperazine Nitroso-3,5-dimethylpiperazine Piperazine, 3,5-dimethyl-1-nitroso-