A benzene ring bears four substituents.
- Chlorine atoms are attached at ring carbons 2 and 6.
- A nitro group -[N+](=O)-[O-] is located at ring carbon 4. The nitro group consists of a positively charged nitrogen double-bonded to one oxygen and single-bonded to another oxygen that carries a negative charge.
- At ring carbon 1, an oxygen atom links the benzene ring to a four-carbon chain; in this chain, the first carbon is connected to the oxygen, and the third carbon bears a hydroxyl group.