2-Aza-ε-cAMP (sodium) serves as a multifunctional dye with broad applications in various scientific and industrial fields. Primarily, dyes like this are utilized in biological experiments to observe and analyze cell structures, track biomolecules, evaluate cell functions, differentiate cell types, detect biomolecules, investigate tissue pathology, and monitor microorganisms. Their use extends from foundational scientific research to a wide spectrum of clinical diagnostics. Additionally, dyes are employed in conventional areas such as textile dyeing and in newer sectors including functional textile processing, food pigments, and dye-sensitized solar cells.