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1-Naphthol-5-sulfonic acid

1-Naphthol-5-sulfonic acid Structure
1-Naphthol-5-sulfonic acid
  • CAS No.117-59-9
  • Chemical Name:1-Naphthol-5-sulfonic acid
  • CBNumber:CB9378966
  • Molecular Formula:C10H8O4S
  • Formula Weight:224.23
  • MOL File:117-59-9.mol
1-Naphthol-5-sulfonic acid Property
  • Melting point 110~112℃
  • Density 1.549±0.06 g/cm3(Predicted)
  • storage temp. Sealed in dry,Room Temperature
  • pka 0.26±0.40(Predicted)
  • InChI InChI=1S/C10H8O4S/c11-9-5-1-4-8-7(9)3-2-6-10(8)15(12,13)14/h1-6,11H,(H,12,13,14)
  • InChIKey YLKCHWCYYNKADS-UHFFFAOYSA-N
  • SMILES C1(S(O)(=O)=O)=C2C(C(O)=CC=C2)=CC=C1
  • CAS DataBase Reference 117-59-9(CAS DataBase Reference)
  • EPA Substance Registry System 1-Naphthalenesulfonic acid, 5-hydroxy- (117-59-9)
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements
  • Precautionary statements

1-Naphthol-5-sulfonic acid Chemical Properties,Usage,Production

  • Chemical Properties Off-white to reddish paste. Dissolved in water. 1-Hydroxynaphthalene-5-sulfonic acid [117-59-9]. (5-hydroxynaphthalene-1-sulfonic acid), oxy L acid, Azurin acid, C10H8O4S, Mr 224.2, and its salts are very soluble in water, but the sodium salt may be precipitated from solution by salting out. Coupling with diazo compounds normally occurs in the 2-position but takes place in the 4-position with stronger diazo compounds such as diazotized nitroanilines. Sulfonation yields 1-hydroxynaphthalene-2,5-disulfonic acid; vigorous alkali fusion gives 1,5-dihydroxynaphthalene. Bromination in acetic acid yields 2,3-dibromo-1,4-naphthoquinone-5-sulfonic acid.
  • Uses 1-Naphthol-5-sulfonic acid is used to prepare dyes and organic pigments, such as direct dark blue L, pigment purple sauce BLC, lake purple red CK, etc. It is also used to prepare photoresist sensitizer 215.
  • Synthesis 1-Naphthol-5-sulfonic acid is obtained from 1-naphthylamine-5-sulfonic acid by salification, hydrolysis and neutralization.
1-Naphthol-5-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1-Naphthol-5-sulfonic acid Suppliers
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1-Naphthol-5-sulfonic acid Spectrum
117-59-9, 1-Naphthol-5-sulfonic acidRelated Search:
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  • L酸(1-萘酚-5-磺酸)
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  • 1-萘酚-5-磺酸 117-59-9
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  • 117-59-9
  • 1-Naphthol-5-sulfonicacid,≥80% (containing sodium salt )
  • 5-hydroxy-1-sulfonic naphthol
  • 117-59-9 1-Naphthol-5-sulfonic acid
  • 1-Naphthol-5-sulfonic acid ISO 9001：2015 REACH
  • 1-Naphthol-5-sulfonicaci
  • 5-Hydroxy-phthalene-1-sulfonic acid
  • 1-NAPHTHOL-5-SULFONIC ACID
  • 5-HYDROXY-NAPHTHALENE-1-SULFONIC ACID
  • L ACID
  • ORGANIC DYE INTERMEDIATE L ACID
  • 5-Hydroxynaphthalene-1-sulfonic acid, 95+%
  • 5-hydroxy-1-naphthalenesulfonicaci
  • 1-NAPHTHOL-5-SULFONICACID(L-ACID,DRY)
  • 5-Hydroxynaphthalene-1-sulphonic acid
  • 5-Hydroxy-1-naphthalenesulfonic acid
  • 5-HYDROXY-1-NAPHTHALENESULFONIC ACID SODIUM SALT TECH
  • 1-Naphthalenesulfonic acid,5-hydroxy-
  • 1,5-Oxy acid
  • 1-NAPHTHOL-5-SULFONIC ACID SODIUM SALT TECH

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