In order to obtain excellent melt-cast explosive carriers, 4-bromo-1-methylpyrazole was used as the raw material, concentrated sulfuric acid and fuming nitric acid were used as nitration agents, and 4-bromo-3, 5-dinitro-1-methylpyrazole (BMDNP) was acquired through one-step nitration. The crystal structure of BMDNP was characterized by X-ray single crystal diffraction, infrared spectrum and nuclear magnetic spectrum. Its detonation performance was calculated using the EXPLO 5.0 program. Its mechanical sensitivity was tested using instruments such as the Custer drop hammer and pendulum friction sensitivity analyzer. And Its thermal performance was analyzed using a differential scanning calorimeter. The results show that the density of the compound is 2.137 g·cm-3, the enthalpy of formation is 266.4 kJ·mol-1, the theoretical detonation velocity is 7 486 m·s-1, the detonation pressure is 26.3 GPa, the impact sensitivity (H50) is 75 cm, the friction sensitivity is 16%, and the melting point is 115 ℃.
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