2-Chloronaphthalene-1-sulfonamide CAS 7720-46-9
| CAS No. | 7720-46-9 |
| Molecular Formula | C10H8ClNO2S |
| Molecular Weight | 241.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 2-Chloronaphthalene-1-sulfonamide (CAS 7720-46-9), a certified reference material (molecular formula C10H8ClNO2S, MW 241.69 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H8ClNO2S, 2-Chloronaphthalene-1-sulfonamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 241.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H8ClNO2S |
| Molecular Weight | 241.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloronaphthalene Standards
- 6-Chloronaphthalene-2-sulfonamide (CAS 103027-67-4)
- 4-Chloronaphthalene-1-sulfonamide (CAS 6292-61-1)
- 6-Chloronaphthalene-2-sulfonic acid (CAS 102878-14-8)
- 8-Chloronaphthalene-1-sulfonic acid (CAS 145-74-4)
- 4-Chloronaphthalene-1-sulfonic acid (CAS 6328-72-9)
- 5-Chloronaphthalene-1-sulfonic acid, 96% (CAS 89108-43-0)
- methyl 3-chloronaphthalene-1-carboxylate (CAS 16650-62-7)
- 6-Chloronaphthalene-1-sulfonyl chloride (CAS 102153-61-7)
Recommended Standards
- 2-Chloro-1-(6-fluoro-2-methyl-3,4-dihydroquinolin-1(2H)-yl)ethan-1-one (CAS 544692-44-6)
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- 1,4-Dioxa-8-azaspiro[4.5]Decane-8-sulfonyl chloride (CAS 765962-66-1)
- 2-Methylquinoline-5-sulfonyl chloride (CAS 2092790-06-0)
- 2,6-Bis(aminomethyl)pyridine (CAS 34984-16-2)
- (E)-2-((4-(3-(4-Bromophenyl)allyl)piperazin-1-yl)methyl)-6-fluoroquinoline (CAS 1228095-73-5)
- 108704-93-4 2-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetyl chloride F1908-0053 (CAS 108704-93-4)
- 1-(2,5-Dimethylbenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338654-81-1)
- benzyl(3-bromo-2-phenylpropyl)methylamine hydrobromide (CAS 1864060-57-0)
- 7-Methylimidazo[1,2-a]pyridin-8-amine (CAS 1215982-63-0)
- Methyl 4-(1-acetylpiperidin-4-yl)-3-(trifluoromethyl)benzoate (CAS 1204331-63-4)
- 2-(5-(Hydroxy((3-hydroxy-2,3-dimethylbutan-2-yl)oxy)boranyl)thiophen-2-yl)propan-2-yl acetate (CAS 1402174-74-6)
- 3-[2-(3-Bromophenoxy)ethyl]piperidinehydrochloride (CAS 1219976-49-4)
- Peptide 436 (CAS CATO-CPTD788436)
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