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1-Naphthol-4-sulfonic acid

1-Naphthol-4-sulfonic acid Structure
1-Naphthol-4-sulfonic acid
  • CAS No.84-87-7
  • Chemical Name:1-Naphthol-4-sulfonic acid
  • CBNumber:CB5743566
  • Molecular Formula:C10H8O4S
  • Formula Weight:224.23
  • MOL File:84-87-7.mol
1-Naphthol-4-sulfonic acid Property
  • Melting point 170℃
  • Boiling point 335.63°C (rough estimate)
  • Density 1.4643 (rough estimate)
  • refractive index 1.7040 (estimate)
  • pka 0.73±0.40(Predicted)
  • form solid
  • form solid
  • color white to yellow
  • InChI InChI=1S/C10H8O4S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6,11H,(H,12,13,14)
  • InChIKey HGWQOFDAUWCQDA-UHFFFAOYSA-N
  • SMILES C1(S(O)(=O)=O)=C2C(C=CC=C2)=C(O)C=C1
  • CAS DataBase Reference 84-87-7(CAS DataBase Reference)
  • FDA UNII 6W41U3C9YN
  • EPA Substance Registry System 1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H302-H315-H319-H335
  • Precautionary statements P261-P305+P351+P338

1-Naphthol-4-sulfonic acid Chemical Properties,Usage,Production

  • Chemical Properties Transparent flake crystal. soluble in water. 1-Hydroxynaphthalene- 4 -sulfonic acid [84-87-7]. (4-hydroxynaphthalene-1-sulfonic acid), Nevile and Winther’s acid, NW acid, C10H8O4S, Mr 224.23, and its salts are water soluble, but the sodium salt may be precipitated from solution by salting out. Coupling with diazo compounds takes place in the 2-position. Nitration yields 2,4-dinitro-1-naphthol, whereas nitrosation gives 2-nitroso-1-hydroxynaphthalene-4-sulfonic acid. Sulfonation leads to a mixture of 1-hydroxynaphthalene-2,4-di- and 2,4,7- trisulfonic acids.
  • Uses 1-Naphthol-4-sulfonic acid is used as an intermediate of azo dyes to prepare dyes such as direct copper blue BR and 2R, direct violet RB, acid red B and acid medium jujube red B
  • Preparation After drying under vacuum, the resulting filter cake contains 1-naphthol-4-sulphonic acid in a yield of 92% of theory and <0.5% 1-naphthol-2-sulphonic acid and 3% of 1-naphthol-2,4-disulphonic acid based on the weight of 1-naphthol-4-sulphonic acid.

    84-87-7.png

  • Synthesis 1-Naphthol-4-sulfonic acid was synthesized by addition, hydrolysis and acid precipitation of sodium 1,4-aminonaphthalene sulfonate.
1-Naphthol-4-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1-Naphthol-4-sulfonic acid Suppliers
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1-Naphthol-4-sulfonic acid Spectrum
84-87-7, 1-Naphthol-4-sulfonic acid Related Search:
  • Intermediates of Dyes and Pigments
  • 化工中间体
  • 医用原料
  • 化工试剂
  • 精细化工原料
  • 医药原料中间体
  • 化工原材料
  • 化工原料
  • 染料中间体
  • 中间体
  • C10H8O4S
  • 4-羟基萘-1-磺酸水合物
  • 1 -萘酚-4-磺酸(尼文酸)
  • 4-羟基萘-1-磺酸
  • 1-荼酚-4磺酸
  • 尼文酸 (1-萘酚-4-磺酸)
  • NW酸
  • 尼文酸(1-萘酚-4-磺酸,NW酸)
  • 尼文酸
  • 1-萘酚-4-磺酸
  • 4-羟基-1-萘磺酸
  • 84-87-7
  • 1-Naphthol-4-sulfonic acid (Nevanil acid)
  • Niven acid
  • 4-Hydroxynaphthalene-1-sulfonicacid hydrate
  • 1-Naphthol-4-sulfonic acid ISO 9001：2015 REACH
  • 1-Naphthol-4-sulfonicaci
  • Naphthol-4-sulfonic acid
  • 1-Naphthol-4-sulfoni
  • Nevile-Winther acid
  • a-Naphthol-4-sulfonic acid
  • 1,4-Oxy Acid
  • Neville and winther acid
  • Neville acid
  • 1-Hydroxy-4-naphthalenesulfonic acid
  • HIGH-PURITY N.W. ACID
  • 1-Hydroxy-4-sulfonaphthalene
  • NEVILLE-WINTHER ACID (NA SALT)
  • 4-hydroxynaphthalene-1-sulfonic acid
  • Meville-winter acid(1-naphthol-4-sulfonic acid,NW-acid)
  • Nevile-Winthers acid
  • 1-NAPHTHOL-4-SULFONIC ACID
  • 4-Hydroxy-1-naphthalenesulfonic acid
  • N-(M-SULFOPHENYL) GAMMA ACID
  • Nevileandwinther’sacid
  • 4-hydroxynaphthalene-1-sulphonicacid
  • 4-hydroxy-1-naphthalenesulfonicaci
  • 1-Naphthalenesulfonicacid,4-hydroxy-

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