1,3-Propanediamine, N,N'-dimethyl-N,N'-dinitroso- 6972-76-5 BRN 2254328 Dinitrosodimethylpropanediamine N,N'-Dimethyl-N,N'-dinitroso-1,3-propanediamine N,N'-Dinitroso-N,N'-dimethyl-1,3-propanediamine NSC 62580