n-(4-Bromophenyl)-4-methyl-3-nitrobenzenesulfonamide CAS 296273-91-1
| CAS No. | 296273-91-1 |
| Molecular Formula | C13H11BrN2O4S |
| Molecular Weight | 371.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
n-(4-Bromophenyl)-4-methyl-3-nitrobenzenesulfonamide (CAS 296273-91-1) is a high-purity analytical reference standard with the molecular formula C13H11BrN2O4S and a molecular weight of 371.21 g/mol.
The molecular framework of n-(4-Bromophenyl)-4-methyl-3-nitrobenzenesulfonamide (C13H11BrN2O4S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), n-(4-Bromophenyl)-4-methyl-3-nitrobenzenesulfonamide 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.
Physical & Chemical Properties
| Molecular Formula | C13H11BrN2O4S |
| Molecular Weight | 371.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Benzyl N-[3-fluoro-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]carbamate (CAS 2096997-12-3)
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