Used as a strong nitrating agent in organic synthesis, particularly for introducing nitro groups into aromatic compounds under mild conditions. It is effective in non-aqueous solvents and allows selective nitration without extensive oxidation side reactions. Commonly applied in the preparation of energetic materials, dyes, and pharmaceutical intermediates where controlled nitration is critical. Its solid form makes it easier to handle compared to gaseous or corrosive alternatives like mixed acid (HNO₃/H₂SO₄).