1-(2-Hydroxyethyl)-3-phenylthiourea

The title compound, C9H12N2OS, was obtained unexpectedly in a multicomponent reaction of an equimolar ratio of phenyl isothiocyanate, malononitrile and aminoethanol. The –C(H2)–N(H)–(C=S)–N(H)– methylthiourea–methane group is almost normal to the phenyl ring, with a dihedral angle of 71.13 (9)°. The N—C—C—O torsion angle is 72.8 (2)°. In the crystal, molecules are connected by N—H⋯O, O—H⋯S and N—H⋯O hydrogen bonds, forming a three-dimensional network.