The molecule is based on a bicyclic aromatic framework consisting of a benzene ring fused to a pyridazine. The pyridazine is a six-membered aromatic ring with two adjacent nitrogens, positioned so that neither nitrogen is directly adjacent to the junctions of the fusion with the benzene ring.

At the pyridazine carbon next to one of the nitrogens, there is an exocyclic dimethylamino group, a tertiary amine substituent carrying two methyl groups.