... Name:Diaminomaleonitrile Other Name:DAMN, 1,2-diamino-1,2-dicyanoethylene,2,3-diamino-2-butenedinitrile White or shallow brown crystallizationl, ... melting point is 178~179,proportion is 1.361,PHis 6.7(water solution of ... In addition, it can be used to synthesize various intermediates of pharmaceutical, pesticide, dye, pigment, such as triazole, ...