para-nitrophenol


para-nitrophenol

noun

  1. See under nitrophenol(def 2).

noun Chemistry.

  1. any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
  2. any of three water-soluble, crystalline isomers of such a derivative, having the formula C6H5NO3, occurring in yellow (ortho-nitrophenol), pale-yellow (meta-nitrophenol), and yellowish (para-nitrophenol) solids, used chiefly as intermediates in organic synthesis and as indicators.

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