Orthanilic Acid

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Properties Simple | Detailed

Formula C6H7NO3S
IUPAC Name 2-aminobenzenesulfonic acid
Molecular Mass 173.190 g·mol−1
Heat of Formation -466.3 ± 16.7 kJ·mol−1
Dipole Moment 3.74 ± 1.08 D
Volume 176.68 Å 3
Surface Area 176.04 Å 2
HOMO Energy -8.94 ± 0.55 eV
LUMO Energy -0.49 ± eV
Point Group Symmetry C1
Synonyms
  • 1-aminobenzene-2-sulfonic acid
  • 2-aminobenzenesulfonate
  • 2-aminobenzenesulphonate
  • 2-aminobenzenesulphonic acid
  • 2-sulfanilic acid
  • aniline-2-sulfonic acid
  • aniline-o-sulfonic acid
  • aniline-o-sulphonic acid
  • anilino-2-sulfonic acid
  • anilino-o-sulfonic acid
  • anilino-o-sulphonic acid
  • benzenesulfonic acid, 2-amino-
  • benzenesulfonic acid, o-amino-
  • o-aminobenzenesulfonic acid
  • o-aminophenylsulfonic acid
  • o-anilinesulfonic acid
  • o-sulfanilic acid
CAS Number(s)
  • 88-21-1
InChIKey ZMCHBSMFKQYNKA-UHFFFAOYSA-N
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