ChemicalBook >> CAS DataBase List >>2-Nitroso-1-naphthol-4-sulfonic acid
2-Nitroso-1-naphthol-4-sulfonic acid
- CAS No.
- 3682-32-4
- Chemical Name:
- 2-Nitroso-1-naphthol-4-sulfonic acid
- Synonyms
- Nitroso-NW acid;3-Nitroso-NW acid;LABOTEST-BB LT00454247;2-Nitroso-1-naphthol-4-sulfonic acid;4-hydroxy-3-nitroso-1-naphthalenesulfonicaci;2-Nitroso-1-hydroxy-4-naphthalenesulfonic acid;4-HYDROXY-3-NITROSO-1-NAPHTHALENESULFONIC ACID;4-hydroxy-3-nitrosonaphthalene-1-sulfonic acid;4-hydroxy-3-nitrosonaphthalene-1-sulphonic acid;1-Naphthalenesulfonic acid, 4-hydroxy-3-nitroso-
- CBNumber:
- CB9115040
- Molecular Formula:
- C10H7NO5S
- Molecular Weight:
- 253.23
- MDL Number:
- MFCD00003933
- MOL File:
- 3682-32-4.mol
- MSDS File:
- SDS
Last updated:2026-09-12 18:55:55
| Melting point | 140-145 °C (dec.) |
|---|---|
| Density | 1.65±0.1 g/cm3(Predicted) |
| pka | 0.11±0.40(Predicted) |
| form | powder to crystal |
| color | Orange to Brown |
| CAS DataBase Reference | 3682-32-4(CAS DataBase Reference) |
| FDA UNII | 7T06PCA43O |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 4-hydroxy-3-nitroso- (3682-32-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H312+H332-H315-H319 | |||||||||
| Precautionary statements | P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501 | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 20/21/22-33-36/37/38 | |||||||||
| Safety Statements | 36/37-37/39-26 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2908.99.9000 | |||||||||
| NFPA 704 |
|
2-Nitroso-1-naphthol-4-sulfonic acid price More Price(8)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | N0269 | 4-Hydroxy-3-nitroso-1-naphthalenesulfonic Acid Hydrate >98.0%(T) | 3682-32-4 | 5g | $50 | 2026-04-30 | Buy |
| TCI Chemical | N0269 | 4-Hydroxy-3-nitroso-1-naphthalenesulfonic Acid Hydrate >98.0%(T) | 3682-32-4 | 25g | $152 | 2026-04-30 | Buy |
| aablocks | AA003HQF | 4-Hydroxy-3-nitrosonaphthalene-1-sulfonic acid >98.0%(T)(HPLC) | 3682-32-4 | 5g | $40 | 2026-05-28 | Buy |
| aablocks | AA003HQF | 4-Hydroxy-3-nitrosonaphthalene-1-sulfonic acid >98.0%(T)(HPLC) | 3682-32-4 | 25g | $122 | 2026-05-28 | Buy |
| Crysdot | CD12078119 | 4-Hydroxy-3-nitrosonaphthalene-1-sulfonic acid 97% | 3682-32-4 | 100g | $422 | 2026-05-27 | Buy |
2-Nitroso-1-naphthol-4-sulfonic acid Chemical Properties, Uses, Production
Purification Methods
Crystallise the acid from dilute HCl solution. The crystals are dried over CaCl2 in a vacuum desiccator. It has also been purified by dissolution in aqueous alkali and precipitation by addition of water. It is a reagent for cobalt. [Beilstein 11 H 331, 11 II 189, 11 III 621, 11 IV 668.]
2-Nitroso-1-naphthol-4-sulfonic acid Preparation Products And Raw materials
Global Suppliers ( 62)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| TOKYO CHEMICAL INDUSTRY CO., LTD. | 03-36680489 | Sales-JP@TCIchemicals.com | Japan | 28364 | 80 |
| TCI Europe | 320-37350700 | sales@tcieurope.eu | Europe | 23654 | 75 |
| TCI AMERICA | 800-4238616 | sales@tciamerica.com | Americas | 23636 | 75 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 22497 | 55 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29985 | 65 |
View Latest Price from 2-Nitroso-1-naphthol-4-sulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-07-20 | 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
3682-32-4
|
$1.00 | 1Kg | 98% | 20T | Shaanxi Dideu Medichem Co. Ltd |
-
- 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
3682-32-4
- $1.00
- 98%
- Shaanxi Dideu Medichem Co. Ltd
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Nitroso-NW acid
4-Hydroxy-3-nitroso-1-naphthalenesulfonic Acid
4-Hydroxy-3-nitroso-1-naphthalenesulfonicAcidHydrate>
1-Naphthalenesulfonic acid, 4-hydroxy-3-nitroso-
2-Nitroso-1-naphthol-4-sulfonic acid
3682-32-4
C10H7NO5Saq
C10H7NO5SxH2O
C10H7NO5S4H2O
C10H7NO5S
Puriss p.a.
General Use
Analytical Reagents
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