P-aminophenol is a fine chemical intermediate commonly used in China. It is used in the dye industry to synthesize weak acid yellow 6G, weak acid light yellow 5g, sulfurized deep blue 3R, sulfurized blue CV, sulfurized brilliant green GB, sulfurized red brown b3r, sulfurized reduced black CLG, etc. In the pharmaceutical industry, it is used in the synthesis of paracetamol, metoprolol, etc. it is also used in the preparation of developer, antioxidant, petroleum additive and other products.