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benzidine

[ ben-zi-deen, -din ]
/ ˈbɛn zɪˌdin, -dɪn /
|

noun Chemistry.

a grayish, crystalline, slightly water-soluble, basic compound, C12H12N2, usually derived from nitrobenzene: used chiefly in the synthesis of certain azo dyes, especially Congo red.

Nearby words

  1. benzenecarboxylic acid,
  2. benzenesulfonic acid,
  3. benzenoid,
  4. benzethonium chloride,
  5. benzi box,
  6. benzimidazole,
  7. benzine,
  8. benzo-,
  9. benzoate,
  10. benzoate of soda

Origin of benzidine

First recorded in 1875–80; benz- + -id3 + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for benzidine

  • Benzidine (Wallis) has also been suggested for the detection of free chlorine.

    Chlorination of Water|Joseph Race

British Dictionary definitions for benzidine

benzidine

/ (ˈbɛnzɪˌdiːn, -dɪn) /

noun

a grey or reddish poisonous crystalline powder that is used mainly in the manufacture of dyes, esp Congo red. Formula: NH 2 (C 6 H 4) 2 NH 2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for benzidine

benzidine

[ bĕn′zĭ-dēn′ ]

n.

A yellowish, white, or reddish-gray crystalline powder used in dyes and to detect blood.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for benzidine

benzidine

[ bĕn′zĭ-dēn′ ]

A yellowish, white, or reddish-gray crystalline powder that is produced synthetically and is carcinogenic. It is used in making dyes, as a reagent, and in detecting blood stains. Chemical formula: C12H12N2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.