10-(2-Eth­oxy-1,3-thia­zol-5-yl)-10-hy­droxy­phenanthren-9(10H)-one

In the title compound, C(19)H(15)NO(3)S, the dihydro­phenanthrene unit is not planar, its central ring being distorted towards a sofa conformation. The essentially planar thia­zole ring [maximum deviation = 0.005 (1) Å] is inclined at a dihedral angle of 85.29 (5)° with respect to the mean plane formed through the dihydro­phenanthrene unit. In the crystal structure, pairs of inter­molecular C—H⋯O hydrogen bonds link adjacent mol­ecules into inversion dimers. Inter­molecular O—H⋯N hydrogen bonds further inter­connect these dimers into chains along the a axis. The crystal structure is further stabilized by weak inter­molecular C—H⋯π inter­actions involving the thia­zole ring.