sulfanilic acid

[suhl-fuh-nil-ik, suhl-]
noun Chemistry.
  1. a grayish-white, crystalline, slightly water-soluble solid, the para form of C6H7NO3S, used chiefly as an intermediate in the manufacture of dyes.

Origin of sulfanilic acid

1855–60; sulf- + anilic (see anil, -ic)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018