2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
- CAS NO.：3682-32-4
- Empirical Formula: C10H7NO5S
- Molecular Weight: 253.23
- MDL number: MFCD00003933
- EINECS: 222-964-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID?
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.]
Properties of 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
| Melting point: | 140-145 °C (dec.) |
| Density | 1.65±0.1 g/cm3(Predicted) |
| form | powder to crystal |
| pka | 0.11±0.40(Predicted) |
| color | Orange to Brown |
| CAS DataBase Reference | 3682-32-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 4-hydroxy-3-nitroso- (3682-32-4) |
Safety information for 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
New Products
Cyclopropane-1,1-dicarboxylic acid Cefuroxime EP Impurity-A N-Nitroso hydroxy Cetrizine EP Impurity-A Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity Lantanoprost rc B Clidinium Bromide Impurity tert-Butyl (2S)-[1-amino-3-(4-iodophenyl)-1-oxopropan-2-yl]carbamate 4-amino-2-fluoro-N- methylbenzamide 5-Chloro-3- Methyl -1,3-2-benzoxazol-2(3H)-one N-(2-chloropyrimidin-4-yl)-N,2,3- trimethyl-2H- indazol 6-amine N-Boc-1,4-butanediamine 4-Bromo-2-fluoro-N-methylbenzamide valeronitrile 3-chlorobenzyl cyanide 3,4 Dimethoxy Benzylcyanide 3,4 Diethoxy Benzylcyanide 2-Chloro Benzylcyanide 3-Hydroxypropionitrile 5-azidovalericacid 6,6'-bis(difluoromethoxy)-2,2'-bis((3,4-dimethoxypyridin-2-yl)methylsulfinyl)-1H,1'H-5,5'-bibenzo[d]imidazole (1-((2'-(2-((1-((2'-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol (1-((2'-(1-((1-((2'-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-1H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol (4-Methoxyphenyl) hydrazine HydrochlorideRelated products of tetrahydrofuran
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