Displaying 7 results of Indocyanine Green Impurities Indocyanine Green is a medical dye used for diagnostic purposes. However, during the manufacturing process, impurities can be introduced that can affect the purity and safety of the final product. These impurities can include residual solvents, heavy metals, and organic compounds. It is essential to monitor and control the levels of these impurities to ensure the quality and efficacy of the dye for medical applications.