Used primarily in the synthesis of phthalocyanine dyes, which are essential in various industrial applications such as textiles and plastics. It serves as a key intermediate in the production of pigments for inks, coatings, and plastics, offering excellent stability and color properties. Additionally, it finds use in the development of organic semiconductors for electronic devices, including solar cells and sensors, due to its ability to form highly conjugated structures. In research, it is employed to study the photophysical properties of materials, aiding in the design of advanced optoelectronic systems. Furthermore, it is investigated for medical applications, such as drug development and medical imaging, due to its responsiveness to light and heat.