. . . "4,4'-Dinitro-3,3'-diazenofuroxan" . . "(E)-4-Nitro-N-[(E)-(4-nitro-2-oxo-1,2,5-oxadiazol-2-ium-3-ylidene)amino]-2-oxido-1,2,5-oxadiazol-3-imine" . . "bis(4-nitro-5-oxido-1,2,5-oxadiazol-5-ium-3-yl)diazene" . "4,4\u2032-Dinitro-3,3\u2032-diazenofuroxan" . . "DDF" . "4,4'-Dinitro-3,3'-diazenofuroxan" . . . "4,4\u2019-dinitro-3,3\u2019-diazenofuroxan" . .