[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch2][Ring1][C][=C][Branch1][#Branch2][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][N+1][=Branch1][C][=O][O-1][Cl]"}, {"from": "gpt", "value": "The molecule is a C-nitro compound that is chlorobenzene carrying a nitro substituent at each of the 2- and 4-positions. It has a role as an epitope, an allergen and a sensitiser. It is a C-nitro compound and a member of monochlorobenzenes."}]