Used primarily in the synthesis of phthalocyanine dyes, which are crucial in various industrial applications. These dyes are employed in the coloring of plastics, textiles, and inks due to their stability and vibrant colors. Additionally, it serves as an intermediate in the production of organic semiconductors, which are integral to the development of electronic devices like solar cells and light-emitting diodes (LEDs). Its role in creating advanced materials for optoelectronics highlights its importance in modern technology.