the energetic salts of 3 - nitramino - 4 - nitrofurazan have a desirable combination of desirable properties such as sufficiently high densities , and low or no hydrogen content . the salts are useful as ingredients in various propellant , explosive , gassifier , and pyrotechnic compositions . 3 - nitramino - 4 - nitrofurazan is itself a useful energetic compound and is also useful in the synthesis of still further energetic compounds .