Used as a key intermediate in the synthesis of fluorescent dyes and optical brighteners due to its strong emission properties under UV light. Commonly applied in the production of sensors for metal ions and pH indicators, leveraging its ability to undergo intramolecular charge transfer. Also utilized in the development of biologically active compounds, including potential antimicrobial and antitumor agents, where the aminophenol structure enhances binding to cellular targets. Its derivative forms are found in some agrochemicals and dye-labeled biomolecules for imaging studies.