Metanilic acid

C6H7NO3SCAS 121-47-1173.19 g/mol

H2NSOOOH
Primary amineSulfonic acid

Properties

Molecular formula
C6H7NO3S
Molar mass
173.19 g/mol
Exact mass
173.0147 Da
Density
1.69 g/mL
Melting point
142–143 °C
Water solubility
< 1 g/L (22.2 °C)
logP
0.52Crippen estimate
Polar surface area
80.4 Ų
H-bond donors / acceptors
2 / 3
Rotatable bonds
1

Hazards

Warning
Irritant (GHS07)

Harmonised EU classification (CLP Annex VI, index 612-013-00-4), via PubChem.

Precautionary statements

P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P321, P330, P362+P364, P501

Identifiers

CAS number
121-47-1
SMILES
Nc1cccc(S(=O)(=O)O)c1
InChIKey
ZAJAQTYSTDTMCU-UHFFFAOYSA-N
InChI
InChI=1S/C6H7NO3S/c7-5-2-1-3-6(4-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

12 names
  • Benzenesulfonic acid, 3-amino-
  • 3-Aminobenzenesulfonic acid
  • m-Anilinesulfonic acid
  • m-Sulfanilic acid
  • 3-Anilinesulfonic acid
  • m-Aminophenylsulfonic acid
  • 3-Sulfoaniline
  • 3-Aminophenylsulfonic acid
  • m-Aminobenzenesulfonic acid
  • NSC 4504
  • 3-Azaniumylbenzenesulfonate
  • 3-Aminobenzene-1-sulfonic acid

Work with Metanilic acid

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Same formula

Elsewhere