Definition of sulphanilamide in English:


(also sulfanilamide)


  • A synthetic compound with antibacterial properties which is the basis of the sulphonamide drugs.

    Alternative name: p-aminobenzenesulphonamide; chemical formula: (H₂N)C₆H₄(SO₂NH₂)

    • ‘An early miss concerned the antibacterial properties of sulfanilamide, which were overlooked for more than 20 years, notably by chemists at I.G. Farbenindustrie who patented the recently synthesized compound in 1909.’
    • ‘The colorimetric determination of the reaction was achieved by adding 1 ml of sulphanilamide and 1 ml of aqueous 10 mM N - 1-naphthyl-ethylene-diamine-dihydrochloride.’
    • ‘After 10 or 20 min of incubation at 26°C, the reaction was stopped by the addition of an equal volume of sulphanilamide.’
    • ‘The samples from the above were reacted with Greiss reagent (1% sulfanilamide, 2% H 3 PO 4 and 0.1% naphthylethylenediamine dihydrochloride).’
    • ‘Earlier this month, Japanese inspectors in Okinawa found excessive levels of sulfanilamide in a 600 kg batch of live eels imported from Taiwan.’


1930s from sulphanilic(from sulphur+ aniline+ -ic)+ amide.