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Sodium 6-hydroxynaphthalene-2-sulfonate

Sodium 6-hydroxynaphthalene-2-sulfonate Basic information
Product Name:Sodium 6-hydroxynaphthalene-2-sulfonate
Synonyms:SCHAEFFERS SALT (SODIUM);6-HYDROXY-2-NAPHTHALENESULFONIC ACID, SODIUM SALT Hydrat, Tech.;6-hydroxy-2-naphthalenesulfonic acid monosodium salt;6-Hydroxy-2-naphthalenesulfonic acid hydrate sodium salt;SODIUM 2-NAPHTHOL-6-SULFONATE;SCHAEFFER ACID;SCHAEFFER'S SALT;SCHAEFFER'S ACID
CAS:135-76-2
MF:C10H7NaO4S
MW:246.21
EINECS:205-218-1
Product Categories:Intermediates;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds
Mol File:135-76-2.mol
Sodium 6-hydroxynaphthalene-2-sulfonate Structure
Sodium 6-hydroxynaphthalene-2-sulfonate Chemical Properties
Melting point >300 °C(lit.)
Boiling point 627.11℃[at 101 325 Pa]
vapor pressure 0Pa at 25℃
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
color Off-White
Water Solubility 1000g/L at 25℃
Stability:Hygroscopic
LogP-2.26 at 25℃
CAS DataBase Reference135-76-2(CAS DataBase Reference)
EPA Substance Registry System2-Naphthalenesulfonic acid, 6-hydroxy-, monosodium salt (135-76-2)
Safety Information
Hazard Codes Xi,Xn
Risk Statements 36/37/38-20/21/22
Safety Statements 26-36-36/37/39-22
WGK Germany 3
HS Code 2922210060
MSDS Information
ProviderLanguage
SigmaAldrich English
Sodium 6-hydroxynaphthalene-2-sulfonate Usage And Synthesis
Uses6-Hydroxy-2-naphthalenesulfonic Acid Sodium Salt is a coupling component used to prepare heterocyclic monoazo dyes.
Uses6-Hydroxy-2-naphthalenesulfonic acid sodium salt hydrate may be used in the following studies:
  • As precursors during the agar-plate screening test.
  • Preparation of methoxy-substituted naphthalenesulfonyl chloride.
  • Synthesis of FD&C Red No. 40, a synthetic water-soluble color that is permitted for coloring foods, drugs and cosmetics in the U.S.A.
General DescriptionSodium salt of 6-hydroxy-2-naphthalenesulfonic acid is also referred as Schaeffer′s salt.
Sodium 6-hydroxynaphthalene-2-sulfonate Preparation Products And Raw materials
Raw materials2-Naphthol
Preparation ProductsSunset Yellow FCF-->ALLURA RED AC
Diphacinone-Na sodium Sodium 3-nitrobenzenesulphonate (+/-)-10-CAMPHORSULFONIC ACID SODIUM SALT Sodium xylenesulfonate Chlorophyllin Antirust agent T702 Diclofenac sodium Sodium 4-hydroxybenzenesulfonate 1-DODECANESULFONIC ACID SODIUM SALT Sodium 2-naphthalenesulfonate Sodium hydroxide p-Hydroxybenzoic acid ethyl ester sodium salt 2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT Sodium 1-heptanesulfonate Sodium lignosulfonate 2-Naphthol Sodium acrylate
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