5-Amino-7-picrylamino-4,6-dinitrobenzofuroxan has been synthesized from 5,7-diamino-4,6-dinitrobenzo furoxan,Its molecular structure has been determined by elemental analysis,IR,NMR,and MS spectroscopes and some of the proper ties, including density(1.93g/cm³),decomposition point(240℃),are also reported.