sulfanilic acid


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sul′fa•nil′ic ac′id

(ˈsʌl fəˈnɪl ɪk, ˌsʌl-)

n.
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 ?
Sulfanilic acid -29 mmol / l, hydrochloric acid - 0.17 mol / L; R2b.
The Bray's indicator is mixture of 100gm of barium sulfate, 75gm of citric acid, 10 gm of manganese sulfate dihydrate, 4gm of sulfanilic acid, 2gm of powdered zinc, and 2gm of 1-naphthylamine.
Here reactive dyes were synthesized using 7-Amino-1-naphthol-3-sulphonic acid (-acid) coupler and 4-Aminobenesulfonic (sulfanilic acid) as monoazo component.
Next, 100 [micro]l Griess reagent (5% v/v [H.sub.3]P[O.sub.4] containing 1% sulfanilic acid and 0.1% N-1-napthylethylenediamine) was added and incubated for 15 min at 37[degrees]C.
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.
NOS activity assay is based on the diazotization of sulfanilic acid by N[O.sup.*] at acid pH and subsequent coupling to N-(l-naphthyl) ethylenediamine.
The scoring function of dock score indicates that the TCM compounds [beta]-lipoic acid and sulfanilic acid have higher binding affinities than both 9-cis-retinoic acid and Targretin.