sulfanilic acid

noun
sul·​fa·​nil·​ic acid
variants: or chiefly British sulphanilic acid \ ˌsəl-​fə-​ˌnil-​ik-​ How to pronounce sulphanilic acid (audio) \

Medical Definition of sulfanilic acid

: a crystalline acid C6H7NO3S obtained from aniline and used especially in making dyes and as a reagent

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