Definition of aniline in English:


Pronunciation /ˈanələn/ /ˈænələn/

Translate aniline into Spanish


  • 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.’


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’).