N-(2-Bromo-4-nitrophenyl)methanesulfonamide CAS 51765-50-5
| CAS No. | 51765-50-5 |
| Molecular Formula | C7H7BrN2O4S |
| Molecular Weight | 295.11 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 N-(2-Bromo-4-nitrophenyl)methanesulfonamide (CAS 51765-50-5), a certified reference material (molecular formula C7H7BrN2O4S, MW 295.11 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H7BrN2O4S, N-(2-Bromo-4-nitrophenyl)methanesulfonamide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 295.11 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.
As a certified reference material (CRM), N-(2-Bromo-4-nitrophenyl)methanesulfonamide 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 | C7H7BrN2O4S |
| Molecular Weight | 295.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related N Standards
- Methyl 5-Bromo-2-(methylsulfonyl)-4-pyrimidinecarboxylate (CAS 1060795-14-3)
- (2-Bromo-4-nitrophenyl)methanesulfonamide (CAS 1179307-46-0)
- n-(4-Bromo-3-nitrophenyl)methanesulfonamide (CAS 1247445-74-4)
- 2-{[(5-bromo-1,3-thiazol-2-yl)carbamoyl]methoxy}acetic acid (CAS 1248470-13-4)
- 3-Bromo-4-methyl-5-nitrobenzenesulfonamide (CAS 1343740-13-5)
- N-(4-Bromo-2-nitrophenyl)methanesulfonamide (CAS 1352244-85-9)
- 2-Bromo-n-methyl-4-nitrobenzenesulfonamide (CAS 273208-08-5)
- 5-Bromo-2-fluoro-N-(pyridin-3-yl)benzamide (CAS 930674-31-0)
Recommended Standards
- Methyl 2-amino-4-fluoro-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2415255-59-1)
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- Methyl 2-amino-3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2667057-27-2)
- N-(5-bromopyridin-2-yl)-3-fluorobenzamide (CAS 5246-16-2)
- (1-Chloroethyl)cyclohexane (CAS 1073-43-4)
- 3-tert-butylcyclobutanone (CAS 20614-90-8)
- 2,4-Difluoro-6-hydroxybenzonitrile (CAS 1261793-35-4)
- (2-(Piperidin-1-yl)phenyl)boronic acid hydrochloride (CAS 1072952-24-9)
- 4,4′-Phosphinicobis[benzoic acid] (CAS 96217-57-1)
- Neuropeptide K, porcine (CAS 106441-70-7)
- 5'-O-DMT-2'-O-TBDMS-rI (CAS 127212-34-4)
- 4-Ethoxy-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (CAS 66656-44-8)
- (1R,2S,5R)-2-isopropyl-5-methylcyclohexyl acrylate (CAS 4835-96-5)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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