5-Amino-1-naphthol

In the title compound, C(10)H(9)NO, the amino and the hydr­oxy groups act both as a single donor and a single acceptor in hydrogen bonding. In the crystal, mol­ecules are connected via chains of inter­molecular ⋯N—H⋯O—H⋯ inter­actions, forming a two-dimensional polymeric structure resembling the hydrogen-bonded mol­ecular assembly found in the crystal structure of naphthalene-1,5-diol. Within this layer, mol­ecules related by a translation along the a axis are arranged into slipped stacks via π–π stacking inter­actions [inter­planar distance = 3.450 (4) Å]. The amino N atom shows sp (3) hybridization and the two attached H atoms are located on the same side of the aromatic ring.