5-Bromo-2-methoxybenzenesulfonyl chloride CAS 23095-05-8
| CAS No. | 23095-05-8 |
| Molecular Formula | C7H6BrClO3S |
| Molecular Weight | 285.54 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 5-Bromo-2-methoxybenzenesulfonyl chloride (CAS 23095-05-8), a certified reference material (molecular formula C7H6BrClO3S, MW 285.54 g/mol) for analytical method development and quality control.
5-Bromo-2-methoxybenzenesulfonyl chloride (C7H6BrClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. 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. 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).
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 | C7H6BrClO3S |
| Molecular Weight | 285.54 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; 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.) | 1963 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-3-methoxybenzenesulfonyl Chloride (CAS 1215295-91-2)
- 3-Bromo-5-methoxybenzene-1-sulfonyl chloride (CAS 1261776-39-9)
- 4-Bromo-2-methoxybenzene-1-sulfonyl chloride (CAS 145915-29-3)
- 2-Bromo-5-methoxybenzenesulfonyl Chloride (CAS 179251-57-1)
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- 2-Bromo-4-methoxybenzenesulfonyl Chloride (CAS 23095-16-1)
- 3'-Bromo-4-chloro-3-fluoro-1,1'-biphenyl (CAS 844856-59-3)
Recommended Standards
- 3-Bromo-4-methoxybenzenesulfonyl Chloride (CAS 23094-96-4)
- 1,3,8-Trichloro-6-methyldibenzo[b,d]furan (CAS 118174-38-2)
- 5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide (CAS 1248203-34-0)
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- 2-(3-chloro-4-fluorophenyl)acetaldehyde (CAS 109346-86-3)
- 2-(3-((Trifluoromethyl)sulfonyl)phenyl)acetonitrile (CAS 1301739-15-0)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
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