Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of vasodilator drugs. It serves as a building block in the production of nitrobenzaldehyde derivatives that exhibit biological activity. Commonly employed in organic synthesis for the preparation of heterocyclic compounds and chelating agents due to its functional groups. Its structure allows for easy modification in the design of sensors and dyes sensitive to metal ions or pH changes. Also utilized in research settings for studying reaction mechanisms involving aldehydes and nitro-aromatic systems.