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Related to toluidine: Toluidine blue


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


(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]


(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]
References in periodicals archive ?
Reds (DPP, Naphthols, Anthraquinone, Toluidine, Anthanthrone, Bon Maroon Quinacridone) Yellow and Oranges (Bismuth Vanadale, Diarylide, Monoflag, Benzimidazolone, Hybrids, Isoindolinone, Dianisidine)
Serum treponema pallidum particle agglutination test positive, other syphilis relative tests such as serum toluidine red unheated serum test, rapid plasma reagin (RPR), Venereal Disease Research Laboratory (VDRL), and CSF RPR, VDRL tests were all negative.
The roots, hypocotyls, epicotyls, cotyledons and the eophylls were fixed in FAA 50 (formaldehyde, glacial acetic acid and ethyl alcohol) (JOHANSEN, 1940) and Glutaraldehyde (KARNOVSKY, 1965), embedded in historesin (GERRITS, 1991), cross-sectioned on a rotation microtome and stained with toluidine blue (O'BRIEN et al.
Dai published an interesting observation [1]: the diffusion of a toluidine blue colloid solution in water measured over a 3-year time span showed anisotropic patterns, i.
figure 10) The resected specimen of the mass was subjected to thorough histopathological examination by special stains like periodic acid-Schiff (PAS), silver impregnation for reticulin, Bodian's stain for nerve fibres and toluidine blue to rule out other differential diagnoses & to reach to a final conclusion.
Eight micrometer sections were made using a Reichert-Jung Leica model 2040 Autocut, and the following techniques were used: Toluidine Blue (routine), Periodic Acid of Schiff (PAS, carbohydrates), Bromophenol Blue (proteins) (Pearse, 1985) and Nile Blue (lipids) (Hawes and Satiat-Jeunemaitre, 2001).
The sections were stained with toluidine blue/basic fuchsin stain (1% toluidine blue O [C.
Other screening and diagnostic methods include the use of chemiluminescent light, mucosal staining with blue dye called toluidine blue, brush biopsy, incisional biopsy and punch tissue biopsy.
Briefly, 8-[micro]m-thick sections were cut with a microtome and stained with hematoxylineosin and toluidine blue.