Used primarily in the synthesis of phthalocyanine dyes, which are widely applied in the textile industry for coloring fabrics. It also serves as a key intermediate in the production of organic semiconductors, which are essential components in electronic devices like solar cells and light-emitting diodes (LEDs). Additionally, it is utilized in the development of advanced materials for optical applications, including nonlinear optics and photodynamic therapy. Its role in creating high-performance pigments makes it valuable in coatings and inks, offering durability and vibrant colors.