Used in pharmaceutical research as a key intermediate in the synthesis of various biologically active compounds. It plays a role in the development of potential drugs targeting bacterial infections, due to its structural properties that can inhibit bacterial enzymes. Additionally, it is explored in the creation of anticancer agents, as its naphthyridine core can interact with DNA or enzymes involved in cancer cell proliferation. Its nitro and chloro groups make it a versatile building block for further chemical modifications in medicinal chemistry.