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Related to toluidine: Toluidine blue


Any of three isomeric compounds, C7H9N, used to make dyes.

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.


(tɒˈljuːɪˌdiːn) or


(Elements & Compounds) an amine derived from toluene existing in three isomeric forms; aminotoluene. The ortho- and meta- isomers are liquids and the para- isomer is a crystalline solid. All three are used in making dyes. Formula: C6H4CH3NH2
[C19: from tolu(ene) + -ide + -ine2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(təˈlu ɪˌdin, -dɪn)

any of three isomeric amines having the formula C7H9N, derived from toluene: used in the manufacture of dyes and drugs.
[1840–50; tolu (ene) + -idine]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The company ranks among the world's leading producers and providers of products such as 1,2,4-triazole, chloroformates and toluidine derivatives.
Since abnormal chromatin integrity is more frequent in infertile men than fertile men, some techniques have been developed to evaluate sperm chromatin integrity status referred as cytochemical assays including aniline blue (AB) and toluidine blue (TB) staining tests (15-17).
Vital tissue staining, commercially marketed as toluidine blue staining, methylene blue staining, Rose Bengal staining and Lugol's iodine staining, each use their own dye to stain abnormal tissues in the mouth.
cupressoides using Fourier Transform Infrared spectroscopy experiment and combination of agarose/polyacrylamide gel electrophoresis and sequential staining with toluidine blue/stains-all, respectively.
Gligor and Walcarius developed a GCE modified with poly(Toluidine Blue O) and single-walled carbon nanotubes for amperometric determination of nitrite as electrochemical sensor.
For the histological evaluation, all sample slices were carried out by hematoxylin and eosin staining and toluidine blue staining for histological observation using an Olympus biological microscope (OLYMPUS BH-2, Tokyo, Japan).
Thick sections were taken with LKB 11.800 pyramitome, and stained with toluidine blue for light microscopic examinations.
Types of pigments: Blacks (carbon black), Blues (phthalocyanine), Greens (phthalocyanine), Reds (bon reds/ maroon, lithol rubine, napthol red, perylene maroon, quinacridane red, quinacridane violet, red lake c, toluidine red), Yellow and oranges
The stains corresponded to: hematoxylin and eosin, for general histology analysis; Alcian blue, Toluidine blue and Masson's trichrome, to identify ECGs cells and characterize the content of their granules, and performic acid and Schiff reagent (PAS), to detect mucopolysaccharides.
The different reagents used in Auramine O staining technique were 0.3% Auramine O , 1% acid alcohol as decolorizer and various counter stains like 0.1% potassium permanganate, 0.1% methylene blue, 0.1% toluidine blue, 0.1% malachite green and undiluted blue ink (9).