Chemical Properties of 2-Naphthylamine-1-sulfonic acid (CAS 81-16-3)

2-Naphthylamine-1-sulfonic acid

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InChI
InChI=1S/C10H9NO3S/c11-9-6-5-7-3-1-2-4-8(7)10(9)15(12,13)14/h1-6H,11H2,(H,12,13,14)
InChI Key
GWIAAIUASRVOIA-UHFFFAOYSA-N
Formula
C10H9NO3S
SMILES
Nc1ccc2ccccc2c1S(=O)(=O)O
Molecular Weight1
223.25
CAS
81-16-3
Other Names
  • 1-Naphthalenesulfonic acid, 2-amino-
  • 2-Naphthylamine-1-sulfonic acid
  • 2-aminonaphthalene-1-sulphonic acid
  • Kyselina 2-naftylamin-1-sulfonova
  • Kyselina tobiasova
  • Tobias acid
Sources

Physical Properties

Property Value Unit Source
Δf -305.79 kJ/mol Joback Calculated Property
Δfgas -416.86 kJ/mol Joback Calculated Property
Δfus 32.60 kJ/mol Joback Calculated Property
Δvap 89.05 kJ/mol Joback Calculated Property
logPoct/wat 1.669 Crippen Calculated Property
Pc 5670.27 kPa Joback Calculated Property
Tboil 696.31 K Joback Calculated Property
Tc 915.54 K Joback Calculated Property
Tfus 469.26 K Joback Calculated Property
Vc 0.584 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 384.65 J/mol×K 696.31 Joback Calculated Property

Molecular Descriptors

Joback and Reid Groups
=CH- (ring) 6
-OH (alcohol) 1
-NH2 1
=C< (ring) 4
-S- 1
=O 2

Similar Compounds

4-Amino-1-naphthalene sulfonic acid. 1-Naphthalenesulfonic acid. Aniline-o-sulfonic acid. 2-Naphthylamine-6-sulfonic acid, sodium salt. 1-Naphthylamine-6-sulfonic acid. 1-Naphthylamine-7-sulfonic acid. 1-Naphthalenesulfonic acid,4-amino-3-hydroxy-. 3-(4-Anilino-1-naphthylazo)-2,7-naphthalene disulfonic acid. 3-(4-Anilino-1-naphthylazo)-2,7-naphthalenedisulfonic acid, monoammonium salt. 3-Amino-p-toluene sulfonic acid. 2-Naphthol-6,8-disulfonic acid dipotassium salt. 2,2'-Dihydroxyazonaphthalene-4-sulfonic acid, zinc salt. Sodium diphenyldiazo-bis-alpha-naphthylamine sulfonate. 1-Amino-8-naphthol-3,6-disulfonic acid. Benzenesulfonic acid, 2-amino-5-chloro-4-ethyl-.

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