1-(4-{[(1,3,3-Trimethylindolin-2-ylidene)methyl]diazenyl}phenyl)ethanone

Abstract

The title compound, C20H21N3O, has crystallographic mirror symmetry with all non-H atoms apart from the methyl C atom of the CMe2 group lying on the mirror plane. Molecules are linked into planar sheets parallel to (010) by phenyl–azo C—H...N and phenyl–ethanone C—H...O interactions. Methyl C—H...π interactions provide crosslinking between the planes.