Definition of aniline in English:


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  • A colorless oily liquid present in coal tar. It is used in the manufacture of dyes, drugs, and plastics, and was the basis of the earliest synthetic dyes.

    Chemical formula: C₆H₅NH₂

    ‘Phenol can be produced from aniline by reacting aniline with a mixture of sodium nitrite and hydrochloric acid to give benzene diazonium chloride, that when heated gently, gives off nitrogen to leave phenol.’
    • ‘Other uses of aniline include the manufacture of rubber processing chemicals and the production of agrochemicals and dyestuffs.’
    • ‘He cited examples of two key raw materials namely phenol and aniline, which are required to manufacture leather chemicals, pigments, dyestuff and rubber chemicals.’
    • ‘Paul Ehrlich improved on Koch's staining procedure, using aniline instead of ammonia and fuchsin instead of methylene blue.’
    • ‘Nitrobenzene, which is used in the production of aniline, a major chemical intermediate in the production of dyes.’
    • ‘Quantitative analyses using aniline blue revealed that the amounts of 1,3 - ß-glucan in wsc1 and rom2 cells were reduced while other suppressor deletion mutant cells were not.’
    • ‘Radial water flow was induced by application of a pressure gradient of - 0.06 MPa. Sections were incubated with monoclonal ABA antibodies and with the secondary Alexa 568 antibodies and stained with aniline blue and toluidine blue.’
    • ‘In subsequent decades, a rainbow of other aniline dyestuffs were synthesized and made available to textile colorists.’
    • ‘Microsomal enzyme levels such as P - 450, reductase, and aniline hydroxylation enzyme were also restored to normal levels after Solanum alatum administration.’
    • ‘Following counter-staining with aniline blue, berberine hemisulfate stains lignified walls bright yellow, Casparian bands intense yellow-white and suberin blue white or blue.’
    • ‘The calculations of Sponar suggest the nonplanarity of amino groups that are bound to aromatic systems such as in aniline or in the nucleic acid bases.’
    • ‘Basic ingredients are acid fuchsin, aniline blue, orange G, and phosphotungstic acid.’
    • ‘An example of a tumor is labeled ‘carcinoma of the mamma gland’ and stained with red aniline.’
    • ‘Predominantly in the tangential walls, primary pit fields of high density are conspicuously labelled by aniline blue staining of callose.’
    • ‘Pollinated stigmas and stylar tissue were softened in some experiments in a solution of 8 N NaOH overnight and washed with fresh water before staining with aniline blue.’
    • ‘Callose was detected by incubating the tissue in 0.1 mM aniline blue in 0.07 M phosphate buffer, pH 8.5, for 3 h, followed by overnight washing in buffer and brief washing in water.’
    • ‘GUS-stained tissue sections were subsequently stained with 0.01% aniline blue in 0.07% phosphate buffer pH 7.5 if required.’
    • ‘The NaOH was subsequently removed and replaced with tap water for 24 h. Styles were then placed in a 1% solution of aniline blue for 8 h before being mounted on microscope slides.’
    • ‘O'Neill identified dahlia as a blue violet developed from aniline red, while Schultz identified it variously as methyl violet and a mixture of magenta and methyl violet.’
    • ‘In the non-lignified portion, even the highly sensitive aniline blue staining failed to detect the presence of callose, which would be indicative of sieve tube formation.’



/ˈanəˌlīn/ /ˈænəˌlaɪn/ /ˈanələn/ /ˈænələn/


Mid 19th century from anil ‘indigo’ (from which it was originally obtained), via French and Portuguese from Arabic an-nīl (from Sanskrit nīlī, from nīla ‘dark blue’).