Used as a selective ionophore in ion-selective electrodes for detecting heavy metal ions, particularly lead (Pb²⁺) and mercury (Hg²⁺), due to its high binding affinity and molecular recognition properties. Its structure allows effective complexation of cations in aqueous solutions, making it valuable in environmental monitoring and wastewater analysis. Also employed in sensor development for trace metal detection in industrial and biological samples. Shows potential in separation technologies for metal recovery and removal of toxic ions from contaminated sources.