4-bromo-N-[(4-bromophenyl)sulfonyl]-N-(4-chloro-3-methyl-5-isoxazolyl)benzenesulfonamide 478262-49-6 KS-00003G49 CAS 478262-49-6
| CAS No. | 478262-49-6 |
| Molecular Formula | C16H11Br2ClN2O5S2 |
| Molecular Weight | 570.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-bromo-N-[(4-bromophenyl)sulfonyl]-N-(4-chloro-3-methyl-5-isoxazolyl)benzenesulfonamide 478262-49-6 KS-00003G49 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4-bromo-N-[(4-bromophenyl)sulfonyl]-N-(4-chloro-3-methyl-5-isoxazolyl)benzenesulfonamide 478262-49-6 KS-00003G49 (CAS 478262-49-6), molecular formula C16H11Br2ClN2O5S2 and molecular weight 570.66 g/mol, is a CATO reference standard with documented purity and traceability.
4-bromo-N-[(4-bromophenyl)sulfonyl]-N-(4-chloro-3-methyl-5-isoxazolyl)benzenesulfonamide 478262-49-6 KS-00003G49 (C16H11Br2ClN2O5S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H11Br2ClN2O5S2 |
| Molecular Weight | 570.66 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 2-(3,6-Di(indolin-1-yl)xanthylium-9-yl)benzenesulfonate (CAS 81189-41-5)
- Ticagrelor Impurity 26 (CAS CATO-C4X-109326)
- 3-Oxo Atorvastatin Methyl Ester (CAS 2206606-73-5)
- Dansyl-Tyr-Val-Gly-OH (CAS 113527-49-4)
- rac N-Benzyl-N-desmethyl Tramadol-d3 (CAS 1346601-74-8)
- Pantoprazole Isomer(R) Impurity (CAS 142706-18-1)
- 2-(2-Bromoethoxy)-1,3,5-trimethylbenzene (CAS 94839-66-4)
- 2-Benzyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione (CAS 130076-29-8)
- 1-(3-Chloro-4-fluorophenyl)-3-(3,5-dimethylphenyl)propan-1-one (CAS 898780-78-4)
- Xylenol Orange Sodium Salt (CAS 63721-83-5)
- 5-Oxo-1-[3-(trifluoromethyl)phenyl]-3-pyrrolidinecarboxylic acid (CAS 2357-26-8)
- 2,5-Dichloro-N-cyclohexylbenzamide (CAS 329930-90-7)
- (3-chloro-2-methylphenyl)hydrazine,HCl (CAS 39943-64-1)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
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