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: Niven acid;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
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.

1-Naphthol-4-sulfonic acid Preparation Products And Raw materials

Raw materials

Sodium bisulfite Naphthionic acid

Preparation Products

disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate Acid Red 374 sodium 3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonate Direct Blue 151 C.I. 14720 sodium 4-hydroxy-3-[[3-(phenylsulphamoyl)-p-tolyl]azo]naphthalenesulphonate disodium 3-[[4'-[[6-amino-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate

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1-Naphthol-4-sulfonic acid Suppliers

Austria 1 China 175 Czech Republic 1 Europe 2 France 1 Germany 1 India 8 South Korea 1 United Kingdom 5 United States 18 Global 213

Alfa Chemistry

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

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: 1-Naphthol-4-sulfonic acid 84-87-7
Price: US $45.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 5000kg/week
Release date: 2024-05-31

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

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

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

2-Naphthol Phenmedipham 1-Naphthalenesulfonic acid Terbinafine Hydrochloride 4-Cyanophenol Naphthalene-2-sulfonic acid CHLOROPHOSPHONAZO III Terbinafine hydrochloride Sodium 2-naphthalenesulfonate 1-Naphthol 1,1'-Bi-2-naphthol 1-NAPHTHOL-4-SULFONIC ACID SODIUM SALT 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID BENZOAZURINE ACID RED 4 THIAZINE RED AZO BLUE PONCEAU SX

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

Niven acid

84-87-7

C10H8O4S

Intermediates of Dyes and Pigments