Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and agrochemicals. Its aldehyde and nitro groups allow for diverse functionalization, making it valuable in constructing complex molecules. The chloromethyl group enables alkylation or coupling reactions, useful in developing bioactive compounds. It is also employed in the synthesis of fluorescent dyes and sensors due to its ability to form Schiff bases that exhibit optical properties. Commonly utilized in research settings for developing nitro-containing heterocycles with potential antimicrobial or anti-inflammatory activity.