1-Methyl-1,3-dinitroguanidine 6810-09-9 CCRIS 7593 GUANIDINE, N-METHYL-N,N'-DINITRO- Guanidine, 1-methyl-1,3-dinitro- (6CI) N-Methyl-N'-nitro-N-nitroguanidine N-Methyl-N,N'-dinitroguanidine NSC 28104