Product Description: sulfo-Cy7.5 amine is a dye derivative of Cyanine 7.5 (Cy7.5) (HY-D0926) bearing an amine group. The sulfonate ion increases the water solubility of the compound, making it suitable for use in aqueous solutions. Cy7.5 is a near-infrared fluorescent dye commonly used for biolabeling and cell imaging. The amine functionality of sulfo-Cy7.5 amine can react with carboxyl groups to form covalent bonds. Sulfo-Cy7.5 amine can bind to biomolecules such as proteins and antibodies to track their location and dynamic changes in biological samples.