The title compound, C13H22N2O, crystallized as a pyrazolol tautomer. The 12-membered macrocycle has a distorted chair conformation. In the crystal, mol-ecules are linked via pairs of O-H⋯N hydrogen bonds, forming inversion dimers. The dimers are linked via N-H⋯π and C-H⋯π inter-actions, forming slabs parallel to the bc plane.
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