Product Description: Sulfo-Cy7.5 alkyne is a dye derivative of Cyanine 7.5 (Cy7.5) (HY-D0926) containing a sulfonate ion and an alkyne functional 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 alkyne functionality of Sulfo-Cy7.5 alkyne can react with molecules containing the azide functionality to form covalent bonds. Sulfo-Cy7.5 alkyne can bind to biomolecules such as proteins and antibodies to track their location and dynamic changes in biological samples.