1-Methoxy-1-methylamino-2-nitroethylene110763-36-5100 % similar N-Methyl-1-(methylthio)-2-nitroethenamine61832-41-549 % similar 1,1-Bis(methylthio)-2-nitroethylene13623-94-438 % similar N-Methyl-N′-nitroguanidine4245-76-532 % similar