2'-Methoxy-3'-nitro-biphenyl-3-carboxylic acid is primarily utilized in organic synthesis as an intermediate in the production of more complex chemical compounds. Its structure, featuring both methoxy and nitro functional groups, makes it a valuable precursor in the development of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) that require biphenyl derivatives. Additionally, it is employed in the creation of agrochemicals, where its nitro group can be further modified to produce herbicides or pesticides. The compound’s carboxylic acid group also allows for easy functionalization, enabling its use in the design of dyes, pigments, and other specialty chemicals. Its role in research and development is significant, particularly in the exploration of novel organic reactions and the study of structure-activity relationships in drug discovery.