Pyrocatechol meaning

pī'rō-kăt'ĭ-kôl', -kŏl', -kōl'
A biologically important phenol, C6 H6 O2 , having two hydroxyl groups attached to the benzene ring, used in dyeing, tanning, photography, and as an antiseptic.
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A white, crystalline phenol, C6H4(OH)2, occurring naturally in plants and now usually produced synthetically: used as an antiseptic, as a photographic developer, etc.
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(organic chemistry) A dihydric phenol, benzene-1,2-diol, present in some tars.
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Sentence Examples

  • When treated with chlorine, pyrocatechol (1.2 or ortho-dioxybenzene) (1) yields a tetrachlor ortho-quinone, which suffers further chlorination to hexachlor-o-diketo-R-hexene (2).

  • More important are Kekule's observations that nitrous acid oxidizes pyrocatechol or [I.2]-dioxybenzene, and protocatechuic acid or [3.4]- dioxybenzoic acid to dioxytartaric acid, (C(OH) 2 COOH) 2 (Ann., 1883, 221, p. 230); and 0.

  • PYROCATECHIN, or Pyrocatechol, ortho-dioxybenzene, C 6 H 4 (OH) 2, first prepared in 1839 by H.

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Words near pyrocatechol in the Dictionary