Used in the synthesis of dyes and pharmaceuticals, particularly as an intermediate in the production of triarylmethane dyes which are valued for their intense color and stability. It also serves as a building block in the development of photochromic compounds—materials that change color in response to light exposure—making it useful in lenses, sensors, and optical switches. Its structural features support its role in organic transformations where aldehyde and amine functionalities are leveraged for condensation and coupling reactions. Additionally, it finds use in research for developing fluorescent probes due to its electron-donating properties and aromatic framework.