4-Nitrophenol is a colorless to light yellow solid with very little odor.It is a conjugate acid of a 4-nitrophenolate.It is used mainly to make drugs, fungicides, dyes, and to darken leather.
4-Nitrophenol (also called p-nitrophenol or 4-hydroxynitrobenzene) is a phenolic compound that has a nitro group at the opposite position of the hydroxyl group on the benzene ring.4-nitrophenol appears as a white to light yellow crystalline solid. Contact may severely irritate skin and eyes.