N,N’-Bis(4-pyridyl)pyromellitimide (CAS 34072-51-0) has a molecular formula of C??H??N?O? and molecular weight of 396.36 g/mol, featuring 4-pyridyl groups attached to the two imide nitrogen atoms of the pyromellitimide core. As a heterocyclic imide, it is widely used in synthesizing metal-organic frameworks (MOFs) and optoelectronic materials for its excellent chelating and ??-conjugated properties. It requires sealed storage under dry conditions to avoid hydrolysis, maintaining structural integrity for applications.