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1-Naphthol-4-sulfonic acid

1-Naphthol-4-sulfonic acid Structure
1-Naphthol-4-sulfonic acid structure
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
Molecular Weight:
224.23
MDL Number:
MFCD00065324
MOL File:
84-87-7.mol
MSDS File:
SDS
Last updated:2023-11-01 14:12:25
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1-Naphthol-4-sulfonic acid Properties

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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

1-Naphthol-4-sulfonic acid price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
AK Scientific G342 1-Naphthol-4-sulfonicacid 84-87-7 1g $247 2021-12-16 Buy
American Custom Chemicals Corporation CHM0018266 1-NAPHTHOL-4-SULFONIC ACID 95.00% 84-87-7 5G $1127.86 2021-12-16 Buy
Alichem 84877 4-Hydroxynaphthalene-1-sulfonicacid 84-87-7 25g $1129.94 2021-12-16 Buy
Arctom AS028098 4-Hydroxynaphthalene-1-sulfonicacid 97% 84-87-7 25g $1130 2021-12-16 Buy
Chemenu CM140112 1-Naphthol-4-sulfonicacid 97% 84-87-7 25g $1198 2021-12-16 Buy
Product number Packaging Price Buy
G342 1g $247 Buy
CHM0018266 5G $1127.86 Buy
84877 25g $1129.94 Buy
AS028098 25g $1130 Buy
CM140112 25g $1198 Buy

1-Naphthol-4-sulfonic acid Chemical Properties,Uses,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

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 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 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 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

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1-Naphthol-4-sulfonic acid Suppliers

Global( 205)Suppliers
Supplier Tel Email Country ProdList Advantage
Changzhou waston chemical technology Co.,Ltd 		+86-051985861892 +8618112881323 info@wastonchem.com China 237 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21695 55
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29914 58
Hubei Jusheng Technology Co.,Ltd. 		18871490254 linda@hubeijusheng.com CHINA 28180 58
Xiamen AmoyChem Co., Ltd 		+86-592-6051114 +8618959220845 sales@amoychem.com China 6387 58
Hubei xin bonus chemical co. LTD 		86-13657291602 linda@hubeijusheng.com CHINA 22968 58
Shandong chuangyingchemical Co., Ltd. 		18853181302 sale@chuangyingchem.com CHINA 5909 58
Chongqing Chemdad Co., Ltd 		+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58
Shaanxi Dideu Medichem Co. Ltd 		+86-029-81148696 +8615536356810 1047@dideu.com China 3679 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21149 58
Supplier Advantage
Changzhou waston chemical technology Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
career henan chemical co 		58
Hubei Jusheng Technology Co.,Ltd. 		58
Xiamen AmoyChem Co., Ltd 		58
Hubei xin bonus chemical co. LTD 		58
Shandong chuangyingchemical Co., Ltd. 		58
Chongqing Chemdad Co., Ltd 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Naphthol-4-sulfonic acid pictures 2023-09-11 1-Naphthol-4-sulfonic acid
84-87-7
 US $0.00 / kg 1kg 65.00% 20tons Hebei Yanxi Chemical Co., Ltd.
1-Naphthol-4-sulfonic acid pictures 2023-02-26 1-Naphthol-4-sulfonic acid
84-87-7
 US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
1-Naphthol-4-sulfonic acid pictures 2022-12-28 1-Naphthol-4-sulfonic acid
84-87-7
 US $9.90 / kg 1kg 99% 1000kg Hebei Duling International Trade Co. LTD

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

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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