ChemicalBook > Product Catalog >Organic Chemistry >Carboxylic acids and derivatives >Carboxylic acid derivatives >1-Naphthol-4-sulfonic acid

1-Naphthol-4-sulfonic acid

1-Naphthol-4-sulfonic acid Suppliers list
Company Name: Changzhou waston chemical technology Co.,Ltd
Tel: +86-051985861892 +8618112881323
Email: info@wastonchem.com
Products Intro: Product Name:1-Naphthol-4-sulfonic acid
CAS:84-87-7
Purity:74% Package:1kg;0.00;USD
Company Name: Hebei Zhuanglai Chemical Trading Co.,Ltd
Tel: +8613343047651
Email: admin@zlchemi.com
Products Intro: Product Name:1-Naphthol-4-sulfonic acid
CAS:84-87-7
Purity:99% Package:1kg;45USD
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512
Email: info@tianfuchem.com
Products Intro: Product Name:84-87-7
CAS:84-87-7
Purity:99% Package:25KG;5KG;1KG
Company Name: career henan chemical co
Tel: +86-0371-86658258 +8613203830695
Email: sales@coreychem.com
Products Intro: Product Name:1-Naphthol-4-sulfonic acid
CAS:84-87-7
Purity:99% Package:1kg;1USD
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 18871490254
Email: linda@hubeijusheng.com
Products Intro: Product Name:1-Naphthol-4-sulfonic acid
CAS:84-87-7
Purity:99% Package:5KG;1KG Remarks:C10H8O4S

1-Naphthol-4-sulfonic acid manufacturers

1-Naphthol-4-sulfonic acid Basic information
Product Name:1-Naphthol-4-sulfonic acid
Synonyms: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
CAS:84-87-7
MF:C10H8O4S
MW:224.23
EINECS:201-568-4
Product Categories:Intermediates of Dyes and Pigments
Mol File:84-87-7.mol
1-Naphthol-4-sulfonic acid Structure
1-Naphthol-4-sulfonic acid Chemical Properties
Melting point 170℃
Boiling point 335.63°C (rough estimate)
density 1.4643 (rough estimate)
refractive index 1.7040 (estimate)
pka0.73±0.40(Predicted)
form solid
form solid
color white to yellow
InChIInChI=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)
InChIKeyHGWQOFDAUWCQDA-UHFFFAOYSA-N
SMILESC1(S(O)(=O)=O)=C2C(C=CC=C2)=C(O)C=C1
CAS DataBase Reference84-87-7(CAS DataBase Reference)
EPA Substance Registry System1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)
Safety Information
MSDS Information
ProviderLanguage
4-Hydroxy-1-naphthalenesulfonic acid English
1-Naphthol-4-sulfonic acid Usage And Synthesis
Chemical PropertiesTransparent 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.
Uses1-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
PreparationAfter 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

Synthesis1-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 materialsSodium bisulfite-->Naphthionic acid
Preparation Productsdisodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate-->C.I. 14720-->Direct Blue 151-->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-->sodium 3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonate-->sodium 4-hydroxy-3-[[3-(phenylsulphamoyl)-p-tolyl]azo]naphthalenesulphonate-->3-[(5-Chloro-2-hydroxy-3-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt-->5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt-->Acid Red 374-->4,4'-[(2-Methyl-5-sodiosulfo-1,3-phenylene)bis[azo(4,6-diamino-3,1-phenylene)azo]]bis[naphthalene-1-sulfonic acid sodium] salt-->BENZOAZURINE-->BRILLIANT PURPURIN R-->THIAZINE RED-->Acid Violet 131-->NAPHTHALENE SCARLET B-->Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex-->Mordant Violet 2-->DIRECTVIOLET32-->disodium (3Z)-3-[[4-(4-anilino-3-sulfonato-phenyl)diazenylnaphthalen-1-yl]hydrazinylidene]-4-oxo-naphthalene-1-sulfonate-->3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt-->6-Amino-4-hydroxy-5-[[4'-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt-->OXAMINE BLUE 4R
Tag:1-Naphthol-4-sulfonic acid(84-87-7) Related Product Information
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