描述
1,2,3-trihydroxybenzene, also known as pyrogallic acid or 1,2,3-benzenetriol, is a member of the class of compounds known as 5-unsubstituted pyrrogallols. 5-unsubstituted pyrrogallols are pyrrogallols that are unsubstituted at th5-position of the benzene ring. 1,2,3-trihydroxybenzene is soluble (in water) and a very weakly acidic compound (based on its pKa). 1,2,3-trihydroxybenzene can be found in arabica coffee, beer, cocoa powder, and coffee, which makes 1,2,3-trihydroxybenzene a potential biomarker for the consumption of these food products. 1,2,3-trihydroxybenzene can be found primarily in blood, feces, and urine. 1,2,3-trihydroxybenzene is an organic compound with the formula C6H3(OH)3. It is a white water-soluble solid although samples are typically brownish because of its sensitivity toward oxygen. It is one of three isomeric benzenetriols .