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rosaniline

American  
[roh-zan-l-in, -ahyn] / roʊˈzæn l ɪn, -ˌaɪn /

noun

Chemistry.
  1. a red dye, C 2 0 H 2 0 N 3 Cl, derived from aniline and orthotoluidine, a constituent of fuchsin.

  2. the base, C 2 0 H 2 1 N 3 O, which, with hydrochloric acid, forms this dye.


rosaniline British  
/ -lɪn, rəʊˈzænɪˌliːn /

noun

  1. a reddish-brown crystalline insoluble derivative of aniline used, in the form of its soluble hydrochloride, as a red dye See also fuchsin

"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

Etymology

Origin of rosaniline

First recorded in 1860–65; rose 1 + aniline

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Members of the rosaniline group are all similarly fugitive, while those of the alizarin group possess generally the quality of fastness.

From Scientific American Supplement, No. 810, July 11, 1891 by Various

Later researches have shown that by heating rosolic acid with ammonia it is converted into rosaniline.

From Coal and What We Get from It by Meldola, Raphael

Among these products may be mentioned aniline, rosaniline, napthaline, chinoline, carbolic acid, picric acid, &c., with their derivatives.

From Field's Chromatography or Treatise on Colours and Pigments as Used by Artists by Salter, Thomas

Magenta is the salt of a base now known as rosaniline, and it belongs therefore to the class of basic colouring-matters.

From Coal and What We Get from It by Meldola, Raphael

It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.

From Coal and What We Get from It by Meldola, Raphael

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