ChemicalBook >> CAS DataBase List >>1-Naphthol-4-sulfonic acid
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
- Molecular Weight:
- 224.23
- MDL Number:
- MFCD00065324
- MOL File:
- 84-87-7.mol
- MSDS File:
- SDS
Last updated:2024-12-18 14:15:30
| 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) |  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 |
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.
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
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
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
1of5
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View Lastest Price from 1-Naphthol-4-sulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-12-26 | 1-Naphthol-4-sulfonic acid
84-87-7
|
US $45.00 / kg | 1kg | 99% | 5000kg/week | Hebei Zhuanglai Chemical Trading Co.,Ltd | |
 |
2024-12-13 | 1-Naphthol-4-sulfonic acid
84-87-7
|
US $0.00 / KG | 1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2024-10-25 | 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
84-87-7
- US $45.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
-
- 1-Naphthol-4-sulfonic acid
84-87-7
- US $0.00 / KG
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 1-Naphthol-4-sulfonic acid
84-87-7
- US $0.00 / kg
- 65.00%
- Hebei Yanxi Chemical Co., Ltd.
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
Niven acid
84-87-7
C10H8O4S
Intermediates of Dyes and Pigments