Fluorescent imaging dyes are high-performance agents optimized for macroscopic and deep-tissue visualization in preclinical and clinical research. This class features our premium near-infrared (NIR) dyes, including Indocyanine Green (ICG) derivatives and other NIR-I/NIR-II fluorophores. These dyes offer exceptional tissue penetration and minimal autofluorescence, making them ideal for in vivo applications such as lymph node mapping, tumor resection guidance, and real-time angiography. With excellent aqueous solubility and clinical safety profiles, they are pivotal for developing next-generation optical imaging and image-guided surgery systems.