Used as a key building block in the synthesis of porphyrin-based conjugated polymers and organic semiconductors. Its extended aromatic structure and amine functional groups enable strong π-π stacking and efficient charge transport, making it valuable in organic photovoltaics (OPVs), dye-sensitized solar cells (DSSCs), and organic transistors. It is also employed in photodynamic therapy (PDT) research due to its ability to absorb light at specific wavelengths and generate reactive oxygen species for targeted cancer cell destruction. In sensor applications, it coordinates with metal ions for colorimetric responses or detects gases and specific molecules via fluorescence changes. Additionally, applied in photocatalytic systems and as a precursor for metal-organic frameworks (MOFs) with tailored electronic properties.