Large gap of p-aminophenol

China has become the world's largest producer of antipyretic and analgesic drugs, with the output of aspirin, paracetamol, analgin and other varieties exceeding 10000 tons, and that of phenacetin, aminopyrine, antipyrine and other varieties exceeding 1000 tons. At present, the output of antipyretic and analgesic drugs in China is growing rapidly, and it is expected that it will increase by about 8% in the future. The production of intermediates for antipyretic and analgesic drugs is large and there are many manufacturers. With the increase of antipyretic and analgesic drugs, the intermedia have also obtained considerable development.

In 2003, the domestic consumption of paracetamol increased rapidly, and the export also showed a rapid growth momentum. The export volume was 28163 tons, and the annual export volume increased by about twice year-on-year. In the first half of 2004, although its export growth slowed down, it still increased. From 2004 to May, the export volume of paracetamol was 12501 tons, slightly higher than the same period last year. Para aminophenol is an important intermediate for the synthesis of paracetamol, which has also grown rapidly in recent years. At present, the annual output of paracetamol in China is about 32000 tons. It is estimated that by 2005, the domestic output of paracetamol will reach more than 50000 tons, and the pharmaceutical industry will consume 45000 tons of paracetamol. With the application in other fields, the total demand for paracetamol in 2005 will be about 50000 tons. The market gap is large, and the development and utilization prospects are broad.