1-Naphthalenesulfonic acid, 2-hydroxy-

HCID 11278

Notes Reactions

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Basic information

CAS: 567-47-5
Standard SMILES: O=S(=O)(O)c1c(O)ccc2ccccc12
InChIKey: SGBQUMZTGSQNAO-UHFFFAOYSA-N
Molecular formula: C10H8O4S
Average molar mass: 224.23 g/mol
Monoisotopic mass: 224.01432974

Names & identifiers

Preferred name: 1-Naphthalenesulfonic acid, 2-hydroxy-
IUPAC: 2-hydroxynaphthalene-1-sulfonic acid
English name: 2-Hydroxy-1-naphthalenesulfonic acid
Molecular weight: 0

Names & synonyms

Stebbins acidOxy-Tobias acid2-Hydroxy-1-naphthalenesulfonic acidbeta-Naphtholsulfonic acid1-NAPHTHALENESULFONIC ACID, 2-HYDROXY-BRN 2214795Kyselina 2-naftol-1-sulfonovaKyselina 2-naftol-1-sulfonova [Czech]DTXSID602052564-11-00-00621 (Beilstein Handbook Reference)RefChem:232324DTXCID60127747

Show more names

2-hydroxynaphthalene-1-sulfonic acid567-47-5ss-NaphtholsulfosaureSCHEMBL5640942-hydroxynaphthalenesulfonic acid26444-53-1

Database identifiers

CAS: 567-47-5
PubChem CID: 11278
DTXSID: DTXSID60205256
Nikkaji: J6.523D

Properties

Computed structural properties

XLogP: 2.1
Topological polar surface area: 83 Å²
Hydrogen bond donors: 2
Hydrogen bond acceptors: 4
Rotatable bonds: 1
Heavy atoms: 15
Formal charge: 0
Complexity: 319

Physicochemical properties

Boiling point: 335.63 °C · 335.63°C (rough estimate)
Density: 1.4643 · 1.4643 (rough estimate)
refractive index: 1.54 · 1.5400 (estimate)

Safety & regulation

Hazard information

Regulatory InformationChemical: 1-Naphthalenesulfonic acid, 2-hydroxy-

Other Safety InformationEvaluation - Chemicals not considered for in depth evaluation - Not commercially active in Australia

Chemistry & industry

Applications · 1 item

UsesVirtually all the 2-hydroxynaphthalene-1-sulfonic acid produced is converted to 2-aminonaphthalene-1-sulfonic acid (Tobias acid) by amination. The calcium salt Asaprol is soluble in aqueous ethanol and has been used in place of gypsum in surgical plaster.