benzidine
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ben·zi·dine
(bĕn′zĭ-dēn′)n.
A carcinogenic yellowish, white, or reddish-gray crystalline powder, C12H12 N2, that is a derivative of biphenyl, is used in dyes, and is used to detect blood stains and cyanide.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
benzidine
(ˈbɛnzɪˌdiːn; -dɪn)n
(Elements & Compounds) a grey or reddish poisonous crystalline powder that is used mainly in the manufacture of dyes, esp Congo red. Formula: NH2(C6H4)2NH2
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ben•zi•dine
(ˈbɛn zɪˌdin, -dɪn)n.
a crystalline base, C12H12N2, used in the synthesis of azo dyes, esp. Congo red.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.