1,5-Dimethyl-2-phenyl-1H-pyrazol-3(2H)-one–4,4′-(propane-2,2-diyl)bis[1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one] (1/1)

1,5-Dimethyl-2-phenyl-1H-pyrazol-3(2H)-one–4,4′-(propane-2,2-diyl)bis[1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one] (1/1)

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The asymmetric unit of the title compound, C11H12N2O·C25H28N4O2, contains two different molecules.The smaller is known as antipyrine [systematic name: 1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one] and the larger is built up from abc material two antypirine molecules which are connected through a C atom of the pyrazolone ring to a central propanyl part [systematic name: 4,4′-(propane-2,2-diyl)bis[1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one].Intramolecular C—H.O hydrogen bonds occur in the latter molecule.

In the crystal, C—H.O hydrogen bonds link the molecules into a dorisvale station for sale two-dimensional network parallel to (001).