P-aminophenol (Pap) ua haujlwm ua tus tsis muaj qhov tseem ceeb hauv kev tsim cov volacetamol (Apap), ib qho ntawm cov neeg siv hluav taws xob feem ntau siv Antiphretic analgesics. Pap feem ntau yog synthesized los ntawm hydrolysis \/ txo ntawm p-nitrochlorobenzene lossis di nitrophenol, nrog nws lub purity ncaj qha ntau yam kev nyab xeeb tshuaj thiab kev ua tau zoo.
Kev lag luam muaj evolved los ntawm cov hmoov tsoos hlau hmoov kom txo rau catalytic hydrogenation, tseem ceeb txo cov pa phem rau hauv dej qias neeg. Kev nthuav tawm bio-enzymatic tam sim no muaj kev xaiv greener. Tshwj xeeb, pap nws tus kheej cov khoom muaj kuab lom, xav tau txoj kev nruj tswj hwm. Nrog rau kev siv tshuaj coob rau kev tso tawm-tso tawm thiab siv yeeb tshuaj sib xyaw ua ke, kev sib xyaw ua ke pap ntau dua los tsav cov tshuab kev siv thev naus laus zis. Kev ua lag luam yog npaj kom loj hlob ntawm 4.5% CAGT txog 2028, tshwj xeeb tshaj yog nyob hauv Asia-Pacific thaj chaw.