Chemical Properties of Benzenesulfonic acid, 4-amino- (CAS 121-57-3)

Benzenesulfonic acid, 4-amino-

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InChI Key
Molecular Weight1
Other Names
  • 4-Amino benzenesulphonic acid
  • 4-Aminobenzenesulfonic acid
  • Aniline-4-sulfonic acid
  • Aniline-p-sulfonic acid
  • Aniline-p-sulphonic acid
  • Kyselina sulfanilova
  • NSC 7170
  • Sulfanilic acid
  • Sulfanilsaeure
  • Sulphanilic acid
  • p-Aminobenzenesulfonic acid
  • p-Aminophenylsulfonic acid
  • p-Anilinesulfonic acid

Physical Properties

Property Value Unit Source
Δcsolid -3351.20 ± 0.50 kJ/mol NIST
Δf -436.49 kJ/mol Joback Calculated Property
Δfgas -513.90 kJ/mol Joback Calculated Property
Δfsolid -612.30 ± 1.00 kJ/mol NIST
Δfus 25.61 kJ/mol Joback Calculated Property
Δvap 77.84 kJ/mol Joback Calculated Property
logPoct/wat 0.516 Crippen Calculated Property
Pc 7255.44 kPa Joback Calculated Property
Tboil 580.83 K Joback Calculated Property
Tc 787.92 K Joback Calculated Property
Tfus 378.96 K Joback Calculated Property
Vc 0.438 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 261.80 J/mol×K 580.83 Joback Calculated Property

Molecular Descriptors

Joback and Reid Groups
=CH- (ring) 4
-OH (alcohol) 1
-NH2 1
=C< (ring) 2
-S- 1
=O 2

Similar Compounds

Benzenesulfonic acid, p-hydrazino-. Sulfanilic acid, n-methyl-, sodium salt. Noname. BENZENESULFONIC ACID. P-phenylazobenzene sulfonic acid. Metanilic acid. Sodium diphenylamine-p-sulfonate. Aniline-o-sulfonic acid. Benzenesulfonic acid, sodium salt. Benzenesulfonic acid, 4-hydroxy-. Noname. Benzenesulfonic acid, methyl ester. P-toluene sulfonic acid monohydrate. P-toluenesulfonic acid, potassium salt. P-toluene sulfonic acid.

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