Used in the synthesis of dyes and pigments, particularly azo and indigo types for textile, ink, and hair coloring applications due to its ability to form complex aromatic structures and act as a coupler for intense, long-lasting colors in permanent hair dyes. It serves as an intermediate in the production of pharmaceuticals, especially analgesics and anti-inflammatory agents. Also employed in the preparation of photographic chemicals and as a building block in organic synthesis for agrochemicals. Its amino, hydroxyl, and methoxy functional groups allow for easy modification, making it valuable in research and development of new chemical entities, including biopharmaceuticals.