title: 2-Amino-3-[(E)-(2-hy-droxy-3-methyl-benzyl-idene)amino]-but-2-ene-dinitrile.
abstract: The title compound, C(12)H(10)N(4)O, is a Schiff base obtained from the condensation of diamino-maleonitrile and 2-hy-droxy-3-methyl-benzaldehyde. The mol-ecule is roughly planar, with an r.m.s. deviation of 0.0354 Å, and adopts the phenol-imine tautomeric form. An intra-molecular O-H⋯N hydrogen bond involving the O-H group and the azomethine N atom generates an S(6) ring. In the crystal, there are two N-H⋯N hydrogen bonds.
authors.forename: Elham S
authors.initials: ES
authors.lastname: Aazam
authors.forename: Orhan
authors.initials: O
authors.lastname: Büyükgüngör