Used as an intermediate in organic synthesis, particularly in the development of photochromic compounds. It plays a role in the production of light-sensitive materials due to its ability to undergo reversible structural changes under UV light. Commonly applied in the manufacture of photochromic lenses, optical switches, and smart coatings. Also investigated for use in molecular logic gates and advanced imaging systems where controlled photoresponse is required. Its nitro and hydroxyl functional groups enable further chemical modifications, making it valuable in designing sensors and functional dyes.