Forensic Medicine Toxicology - 1 fbb3deb9 Xanthoproteic reaction is due to the formation of A Trinitrophenol B Mononitrophenol C Nitric acid D Pyrocathechol High-Yield Explanation Nitric acid is a powerful oxidising agent and reacts with organic matter to produce trinitrophenol, liberating nitrogen monoxide (xanthoproteic reaction).