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phenolsulfonic acid

noun phe·nol·sul·fon·ic acid
variants: or chiefly British

phenolsulphonic acid

\ˌsəl-ˈfän-ik, -ˈfōn-\play

Medical Definition of phenolsulfonic acid

  1. :  a sulfonic acid derived from phenol; especially :  a crystalline acid C6H6O4S used chiefly as an intermediate for dyes and pharmaceuticals

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