5-Bromo-2-methoxy-4-methylbenzenesulfonyl chloride CAS 808134-00-1
| CAS No. | 808134-00-1 |
| Molecular Formula | C8H8BrClO3S |
| Molecular Weight | 299.57 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.
5-Bromo-2-methoxy-4-methylbenzenesulfonyl chloride (CAS 808134-00-1), molecular formula C8H8BrClO3S and molecular weight 299.57 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 5-Bromo-2-methoxy-4-methylbenzenesulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 299.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Bromo-2-methoxy-4-methylbenzenesulfonyl chloride 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 | C8H8BrClO3S |
| Molecular Weight | 299.57 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 |
| 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.) | 1986 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 5-Bromo-2-ethoxy-benzenesulfonyl chloride (CAS 379255-01-3)
- 5-Bromo-6-chloro-N-ethylpyridine-3-sulfonamide (CAS 622814-98-6)
- 2-(3-Bromo-5-chloro-benzenesulfonyl)-ethanol (CAS 1824268-31-6)
- Oleic Acid-d17 (CAS 223487-44-3)
- 2-((3,5-Dimethylisoxazol-4-yl)methoxy)benzaldehyde (CAS 910443-07-1)
- 1-(3-Methylazetidin-3-yl)propan-1-one (CAS 1935491-10-3)
- N-(4-(Benzofuran-2-yl)thiazol-2-yl)-5-chlorothiophene-2-carboxamide (CAS 716365-80-9)
- 2-Amino-3-(3-fluoro-5-(trifluoromethoxy)phenyl)propanoic acid (CAS 1391002-18-8)
- 2-(6,7-Dihydro-5H-indeno[5,6-b]furan-3-yl)-N-(2-((furan-2-ylmethyl)thio)ethyl)acetamide (CAS 869867-40-3)
- 3-Hydroxy-5-(trifluoromethyl)benzonitrile (CAS 1243459-56-4)
- 3,3-Difluoro-1-phenylpropan-1-amine (CAS 1339427-03-0)
- n-(2-Chloro-4-methylphenyl)tetrahydro-2h-thiopyran-3-amine (CAS 1339705-72-4)
- 4-Bromo-1-(methylthio)-2-(trifluoromethyl)-benzene (CAS 300356-31-4)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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