sulfanilic acid

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Related to sulfanilic acid: methyl orange

sul′fa•nil′ic ac′id

(ˈsʌl fəˈnɪl ɪk, ˌsʌl-)

a grayish white, crystalline, slightly water-soluble solid, the para form of C6H7NO3S, used chiefly as an intermediate in the manufacture of dyes.
[1855–60; sulf- + anilic]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sulfanilic acid - a crystalline acid made from aniline and used as a dye
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
References in periodicals archive ?
Accordingly, sulfanilic acid (7) was diazotized by treating it with Sodium nitrite and HCl at low temperature 0-5AdegC.
Plates were viewed under UV light at 254nm and sprayed with diazotized sulfanilic acid (DSA) (13).
Bilirubin reacts with diazotized sulfanilic acid to form an azo compound, the colour of which is measured at 546 nm and is proportional to the concentration of bilirubin.
Chemicals: Xanthine oxidase, allopurinol, xanthine, hydroxylamine, N-(1-naphthyl)-ethylenediamine dihydrochloride, sulfanilic acid, ethylenediamine tetra acetate (EDTA), butylated hydroxytoluene (BHT), gallic acid, 2, 4, 6-tripyridyl-s-triazine (TPTZ), 1,1-diphenyl-2- picrylhydrazyl (DPPH), acetylthiocholine iodide, 5,5- dithiobis [2-nitro benzoic acid (DTNB) were purchased from Merck (Germany) and sigma aldrich.
2% a- naphthylamine and 1 mL 4% sulfanilic acid in hydrochloric acid.
The acidified nitrite produced nitrosating agent which reacted with sulfanilic acid to produce diazonium ions.
5 mL of the reaction mixture mixed with 1 mL of sulfanilic acid reagent (0.