phenolsulfonic acid

noun phe·nol·sul·fon·ic acid

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

phe·nol·sul·fon·ic acid or chiefly British phe·nol·sul·phon·ic acid \ˌsəl-ˈfän-ik, -ˈfōn-\

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