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CAS 91-30-5

:

5-Amino-2-(phenylamino)benzenesulfonic acid

Description:
5-Amino-2-(phenylamino)benzenesulfonic acid, also known as sulfanilic acid, is an aromatic sulfonic acid characterized by the presence of both amino and sulfonic acid functional groups. It appears as a white to light yellow crystalline powder and is soluble in water, making it useful in various applications. The compound has a molecular formula that reflects its complex structure, which includes a benzene ring substituted with an amino group and a sulfonic acid group. Sulfanilic acid is primarily utilized in the synthesis of azo dyes and as a reagent in analytical chemistry, particularly in the determination of nitrite and nitrate ions. Additionally, it has applications in the pharmaceutical industry and as a precursor for various chemical syntheses. The compound is generally stable under standard conditions but should be handled with care due to its potential to cause skin and eye irritation. Its properties make it an important compound in both industrial and laboratory settings.
Formula:C12H12N2O3S
InChI:InChI=1S/C12H12N2O3S/c13-9-6-7-11(12(8-9)18(15,16)17)14-10-4-2-1-3-5-10/h1-8,14H,13H2,(H,15,16,17)
InChI key:InChIKey=HYLOSPCJTPLXSF-UHFFFAOYSA-N
SMILES:N(C1=C(S(=O)(=O)O)C=C(N)C=C1)C2=CC=CC=C2
Synonyms:
  • 2-(Phenylamino)-5-aminobenzenesulfonic acid
  • 4-Amino-1,1'-diphenylamine-2-sulfonic acid
  • 4-Amino-2-sulfodiphenylamine
  • 4-Aminodiphenylamine-2-sulfonic acid
  • 5-Amino-2-(phenylamino)-benzenesulfonic acid
  • 5-Amino-2-anilinobenzenesulfonic acid
  • 6-Anilinometanilic acid
  • Benzenesulfonic acid, 5-amino-2-(phenylamino)-
  • Benzenesulfonic acid, 5-amino-2-anilino-
  • N-Phenyl-p-phenylenediamine-2-sulfonic acid
  • See more synonyms
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