The molecule contains two aromatic rings: a 1H-pyrazole ring (five-membered, with adjacent nitrogens at positions 1 and 2) and a benzene ring. The two rings are connected through a carbonyl bridge (-C(=O)-), with the carbonyl carbon attached to the C5 position of the pyrazole (adjacent to N1).

Substituents on the pyrazole:
- The N1 nitrogen is bonded to an ethyl group.
- The C4 carbon bears a methoxy group (-O-CH3).

Substituents on the benzene ring:
- A bromine atom is located at the para position relative to the carbonyl attachment point.
- A chlorine atom is located at the ortho position relative to the bromine substituent.