Used as an intermediate in organic synthesis, particularly in the production of dyes and pigments due to its xanthene core structure. It is also employed in the development of fluorescent markers and probes for biological imaging, leveraging its ability to emit light under specific conditions. Additionally, it finds application in the creation of photochromic materials, which change color in response to light exposure, making it useful in smart coatings and optical devices. Its chemical properties are also explored in pharmaceutical research for designing novel drug compounds.