Sulfanilic acid

Sulfanilic acid (4-aminobenzene sulfonic acid ) is a grey crystalline solid produced from sulfonation of aniline. It readily forms diazo compounds and is used to make dyes and sulpha drugs. Sulphanilic acid exists as a zwitterion, and has an unusually high melting point. It is used as a standard in combustion analysis.
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Classifications:

Formula:

  • C6H7NO3S

Structure (InChI):

  • InChI=1/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)/f/h8H

Also known as:

  • Sulfanilic acid/Collapsible

Chemical Compound

Structure (SMILES):

  • C1=CC(=CC=C1N)S(=O)(=O)O

Density:

  • 1.485 g/cm³ (1485 kg/m³ )
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