Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and fine chemicals. Its reactivity as an alkylating agent makes it valuable for introducing the 2-(4-nitrophenyl)ethyl group into target molecules. The nitro group allows for further functionalization, such as reduction to an amine, enabling the construction of more complex structures like active pharmaceutical ingredients. It is also employed in the synthesis of certain dyes and fluorescent probes due to the aromatic nitro moiety’s electronic properties. Commonly used in research settings for developing new bioactive compounds.