2,4-Dibromo-3-(difluoromethoxy)benzenesulfonyl chloride CAS 1806356-56-8
| CAS No. | 1806356-56-8 |
| Molecular Formula | C7H3Br2ClF2O3S |
| Molecular Weight | 400.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2,4-Dibromo-3-(difluoromethoxy)benzenesulfonyl chloride (CAS 1806356-56-8), a certified reference material (molecular formula C7H3Br2ClF2O3S, MW 400.42 g/mol) for analytical method development and quality control.
The molecular framework of 2,4-Dibromo-3-(difluoromethoxy)benzenesulfonyl chloride (C7H3Br2ClF2O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H3Br2ClF2O3S |
| Molecular Weight | 400.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Dibromo Standards
- 2,3-Dibromo-4-(difluoromethoxy)benzenesulfonyl chloride (CAS 1803710-23-7)
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