Synthesis, crystal structure and Hirshfeld surface analysis of (E)-benzo[d][1,3]dioxole-5-carbaldehyde oxime

The asymmetric unit of the title mol­ecule, C(8)H(7)NO(3), consists of two mol­ecules differing slightly in conformation and in their inter­molecular inter­actions in the solid. The dihedral angle between the benzene and dioxolane rings is 0.20 (7)° in one mol­ecule and 0.31 (7)° in the other. In the crystal, the two mol­ecules are linked into dimers through pairwise O—H⋯N hydrogen bonds, with these units being formed into stacks by two different sets of aromatic π-stacking inter­actions. The stacks are connected by C—H⋯O hydrogen bonds. A Hirshfeld surface analysis indicates that the most significant contacts in the crystal packing are H⋯O/O⋯H (36.7%), H⋯H (32.2%) and C⋯H/H⋯C (12.7%).