phenolsulphonic acid\ˌsəl-ˈfän-ik, -ˈfōn-\play
Medical Definition of phenolsulfonic acid
: a sulfonic acid derived from phenol; especially : a crystalline acid C6H6O4S used chiefly as an intermediate for dyes and pharmaceuticals
Seen and Heard
What made you want to look up phenolsulfonic acid? Please tell us where you read or heard it (including the quote, if possible).