4-Nitrophenyl palmitate

4-Nitrophenyl palmitate (4-Nitrophenyl hexadecanoate; p-Nitrophenyl Palmitate) is a colorimetric lipase and esterase substrate. Upon enzymatic hydrolysis of 4-Nitrophenyl palmitate, 4-nitrophenol is released, which can be quantified by colorimetric detection at 410 nm as a measure of enzyme activity. 4-Nitrophenyl palmitate has been used to characterize the activity of various bacterial and mammalian enzymes, including Burkholderia and porcine pancreatic lipase.