Used as a near-infrared (NIR) absorbing dye in optical applications such as organic photovoltaics and photodetectors. Its extended conjugation and butoxy side chains enhance solubility and light absorption in the NIR region, making it suitable for use in transparent conductive films and sensors. Also explored in photodynamic therapy due to its ability to generate reactive oxygen species under light exposure. Applied in ink formulations for security printing and authentication tags because of its unique spectral signature.