ChemicalBook > CAS DataBase List > 1-Naphthol-4-sulfonic acid

1-Naphthol-4-sulfonic acid

Product Name
1-Naphthol-4-sulfonic acid
CAS No.
84-87-7
Chemical Name
1-Naphthol-4-sulfonic acid
Synonyms
Neville acid;1,4-Oxy Acid;Nevile-Winther acid;Nevile-Winthers acid;1-Naphthol-4-sulfoni;HIGH-PURITY N.W. ACID;Nevileandwinther’sacid;Neville and winther acid;Naphthol-4-sulfonic acid;1-Naphthol-4-sulfonicaci
CBNumber
CB5743566
Molecular Formula
C10H8O4S
Formula Weight
224.23
MOL File
84-87-7.mol
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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)
EPA Substance Registry System
1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

AK Scientific
Product number
G342
Product name
1-Naphthol-4-sulfonicacid
Packaging
1g
Price
$247
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0018266
Product name
1-NAPHTHOL-4-SULFONIC ACID
Purity
95.00%
Packaging
5G
Price
$1127.86
Updated
2021/12/16
Alichem
Product number
84877
Product name
4-Hydroxynaphthalene-1-sulfonicacid
Packaging
25g
Price
$1129.94
Updated
2021/12/16
Arctom
Product number
AS028098
Product name
4-Hydroxynaphthalene-1-sulfonicacid
Purity
97%
Packaging
25g
Price
$1130
Updated
2021/12/16
Chemenu
Product number
CM140112
Product name
1-Naphthol-4-sulfonicacid
Purity
97%
Packaging
25g
Price
$1198
Updated
2021/12/16
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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.

Synthesis

1-Naphthol-4-sulfonic acid was synthesized by addition, hydrolysis and acid precipitation of sodium 1,4-aminonaphthalene sulfonate.

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View Lastest Price from 1-Naphthol-4-sulfonic acid manufacturers

Hebei Duling International Trade Co. LTD
Product
1-Naphthol-4-sulfonic acid 84-87-7
Price
US $9.90/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg
Release date
2022-12-27
Hebei Yanxi Chemical Co., Ltd.
Product
1-Naphthol-4-sulfonic acid 84-87-7
Price
US $0.00/kg
Min. Order
1kg
Purity
65.00%
Supply Ability
20tons
Release date
2023-09-11
WUHAN FORTUNA CHEMICAL CO., LTD
Product
1-Naphthol-4-sulfonic acid 84-87-7
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-25

84-87-7, 1-Naphthol-4-sulfonic acid Related Search:


  • 1-Naphthalenesulfonicacid,4-hydroxy-
  • 4-hydroxy-1-naphthalenesulfonicaci
  • 4-hydroxynaphthalene-1-sulphonicacid
  • Nevileandwinther’sacid
  • N-(M-SULFOPHENYL) GAMMA ACID
  • 4-Hydroxy-1-naphthalenesulfonic acid
  • 1-NAPHTHOL-4-SULFONIC ACID
  • Nevile-Winthers acid
  • Meville-winter acid(1-naphthol-4-sulfonic acid,NW-acid)
  • 4-hydroxynaphthalene-1-sulfonic acid
  • NEVILLE-WINTHER ACID (NA SALT)
  • 1-Hydroxy-4-sulfonaphthalene
  • HIGH-PURITY N.W. ACID
  • 1-Hydroxy-4-naphthalenesulfonic acid
  • Neville acid
  • Neville and winther acid
  • 1,4-Oxy Acid
  • a-Naphthol-4-sulfonic acid
  • Nevile-Winther acid
  • 1-Naphthol-4-sulfoni
  • Naphthol-4-sulfonic acid
  • 1-Naphthol-4-sulfonicaci
  • 1-Naphthol-4-sulfonic acid ISO 9001:2015 REACH
  • 4-Hydroxynaphthalene-1-sulfonicacid hydrate
  • 84-87-7
  • C10H8O4S
  • Intermediates of Dyes and Pigments