The synthesis and structural characterization of bis[4-aminofurazanyl-3-azoxy]azofurazan (ADAAF) and 3,4:7,8:11,12:15,16-tetrafurazano-1,2,5,6,9,10,13,14-octaazacyclohexadeca-1,3,5,7,9,11,13,15-octaene-1,10-dioxide (DOATF) are described. Explosive sensitivity properties of both materials were determined. The heat of formation of ADAAF was measured to be 300 kcal/mol and the detonation velocity and pressure of ADAAF were measured to be 7.88 km/s and 299 kbar, respectively, at 94% theoretical maximum density. We also investigated the burning rate characteristics of ADAAF.