Used as an intermediate in the synthesis of pharmaceuticals and fine chemicals, particularly in the preparation of non-steroidal anti-inflammatory drugs (NSAIDs). It serves as a building block for aryl ketone derivatives due to its reactive carbonyl group. Also employed in organic synthesis for constructing heterocyclic compounds through condensation and cyclization reactions. Its aromatic alpha-keto acid structure makes it valuable in catalysis studies and development of new synthetic methodologies.