In the title ternary co-crystalline adduct, C 7 H 14 N 4 ·2C 6 H 5 NO 3 , molecules are linked by two intermolecular O—H...N hydrogen bonds, forming a tricomponent aggregates in the asymmetric unit. The hydrogen-bond formation to one of the N atoms is enough to induce structural stereoelectronic effects in the normal donor→acceptor direction. In the title adduct, the two independent nitrophenol molecules are essentially planar, with maximum deviations of 0.0157 (13) and 0.0039 (13) Å. The dihedral angles between the planes of the nitro group and the attached benzene rings are 4.04 (17) and 5.79 (17)°. In the crystal, aggregates are connected by C—H...O hydrogen bonds, forming a supramolecular dimer enclosing an R 6 6 (32) ring motif. Additional C—H...O intermolecular hydrogen-bonding interactions form a second supramolecular inversion dimer with an R 2 2 (10) motif. These units are linked via C—H...O and C—H...N hydrogen bonds, forming a three-dimensional network.