Nitrophenol


Nitrophenols are compounds of the formula HOC6H5-xx. The conjugate bases are called nitrophenolates. Nitrophenols are more acidic than phenol itself.

Mono-nitrophenols

with the formula HOC6H4NO2. Three isomeric nitrophenols exist:
The mononitrated phenols are often hydrogenated to the corresponding aminophenols that are also useful industrially.

Di- and trinitrophenols

is a moderately strong acid. 2,4,6-trinitrophenol is better known as picric acid, which has a well-developed chemistry.

Safety

Nitrophenols are poisonous. Occasionally, nitrophenols contaminate the soil near former explosives or fabric factories and military plants, and current research is aimed at remediation.