Analytes - 4-nitrophenol
4-nitrophenol: CAS No. 100-02-7, C6H5NO3, molecular weight 139.11, boiling point 279°C, density 1.27gm/mL, vapor pressure 0.00mm Hg at 25°C, flash point none, water soluble is a yellowish crystalline solid used as an intermediate in the production of acetominophen and as a pH indicator. It is most frequently measured in water and soil to comply with environmental regulations. Due to its volatility, it is most often measured using GC/FID and GC/MS methods specified by regulatory agencies like the U.S. EPA.