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Metanilic acid

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Metanilic acid
Names
Preferred IUPAC name 3-Aminobenzene-1-sulfonic acid
Other names 3-Aminobenzenesulfonic acid
m-Anilinesulfonic acid
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.004.067 Edit this at Wikidata
EC Number
  • 204-473-6204-473-6
PubChem CID
UNII
UN number 2585
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C6H7NO3S/c7-5-2-1-3-6(4-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)
SMILES
  • Nc1cccc(S(=O)(=O)O)c1
Properties
Chemical formula C6H7NO3S
Molar mass 173.19 g·mol
Appearance Beige powder
Density 1.69
Melting point >300 °C (lit.)
Solubility in water Less than 1 mg/mL at 22 °C (72 °F)
Acidity (pKa) 3.74 (H2O)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Metanilic acid is an isomer of sulfanilic acid with molecular formula C
6H
7NO
3S and molecular weight 173.18968 g/mol. It is a white powder that is slightly soluble in water.

See also

References

  1. Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. pp. 5–88. ISBN 978-1498754286.
  2. Pubchem. "3-AMINOBENZENESULFONIC ACID - C6H7NO3S - PubChem". NIH.
  3. "Metanilic acid - 121-47-1".
  4. "Metanilic acid".
  5. "METANILIC ACID (3-AMINO-BENZENESULFONIC ACID)".


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