The molecule contains three nitrogen atoms in a row (N1-N2-N3), each bearing one hydrogen. N1 is bonded to a benzene ring (Ring A) at its C-1 position. On Ring A, a nitro group is attached to C-3 (i.e., meta to the N1 attachment). The nitro group consists of a nitrogen atom bonded to two oxygen atoms, one via a double bond and the other via a single bond, resulting in a positive charge on the nitrogen and a negative charge on the singly bonded oxygen. N3 is bonded to a second benzene ring (Ring B), which bears an ethoxycarbonyl group (-C(=O)OCH2CH3) at the para position relative to the N3 attachment.