2-Bromo-4,5-difluoro-N-methoxybenzenesulfonamide CAS 1704066-97-6
| CAS No. | 1704066-97-6 |
| Molecular Formula | C7H6BrF2NO3S |
| Molecular Weight | 302.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Bromo-4,5-difluoro-N-methoxybenzenesulfonamide (C7H6BrF2NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 302.09 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-Bromo-4,5-difluoro-N-methoxybenzenesulfonamide (CAS 1704066-97-6), molecular formula C7H6BrF2NO3S and molecular weight 302.09 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C7H6BrF2NO3S |
| Molecular Weight | 302.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 3-(Benzylamino)-6-chloroquinazolin-4(3H)-one (CAS 89804-99-9)
- 5-Cyano-2-fluorobenzenesulfonamide (CAS 1204572-73-5)
- Taurodeoxycholic acid-d4 sodium (CAS 2410279-82-0)
- Altrenogest Impurity 6 (CAS CATO-C4X-24836)
- (R)-1-(1-Phenylethyl)pyrrolidin-2-one (CAS 60737-24-8)
- N-[(3,4-dichlorophenyl)methyl]-1H-indazol-6-amine (CAS 864422-88-8)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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