Used as a highly selective fluorescent sensor for detecting trivalent metal ions such as aluminum (Al³⁺) and iron (Fe³⁺) in environmental and biological samples. Its rigid, conjugated structure enables strong emission signals upon binding with specific metal ions, making it effective in trace metal analysis. Also applied in supramolecular chemistry for constructing metal-organic frameworks due to its multiple binding sites and structural stability. Shows potential in optoelectronic devices because of its luminescent properties and thermal resistance.