4-Phenyl-9,12,15-trioxa-1,5,6,18-tetra-azatetra-cyclo-[16.6.1.0.0]penta-conta-2,4,19,21,23-pentaen-25-one.

The title compound, C(24)H(26)N(4)O(4), is a diaza-crown ether encompassing linked phenylpyrazolyl and benzimidazole units that contribute five atoms to the 16-atom ring. The two planar phenylpyrazolyl and benzimidazole units are aligned at an angle of 66.4 (1)°.