5-Bromo-3-chloro-2-methoxybenzene-1-sulfonyl chloride CAS 1152516-62-5
| CAS No. | 1152516-62-5 |
| Molecular Formula | C7H5BrCl2O3S |
| Molecular Weight | 319.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Bromo-3-chloro-2-methoxybenzene-1-sulfonyl chloride (C7H5BrCl2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/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 319.99 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Bromo-3-chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 1152516-62-5), molecular formula C7H5BrCl2O3S and molecular weight 319.99 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H5BrCl2O3S |
| Molecular Weight | 319.99 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.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-5-chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 1208076-81-6)
- 4-Bromo-2-chloro-5-methoxybenzenesulfonyl chloride (CAS 1418316-29-6)
- 5-Bromo-4,6-dichloro-2-((methylsulfonyl)methyl)pyrimidine (CAS 1423024-74-1)
- 2-Bromo-5-chloro-4-methoxybenzene-1-sulfonyl chloride (CAS 868406-66-0)
- 3-Bromo-5-chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 885532-56-9)
- 2-Bromo-1-(5-bromo-2,3-dihydrobenzofuran-7-yl)ethan-1-one (CAS 690632-70-3)
- 2-Bromo-5-iodo-3-methoxypyridine (CAS 1131335-43-7)
- 2-Bromo-4-iodo-3-methoxypyridine (CAS 1261365-82-5)
Recommended Standards
- Ozagrel Impurity 31 (CAS CATO-C4X-197131)
- Methyl 4-(2,2-dibromovinyl)benzoate (CAS 253684-21-8)
- Methyl (2E)-3-(3,5-dibromophenyl)prop-2-enoate (CAS 695187-21-4)
- Ethanone, 1,1'-(1,4-phenylene)bis[2-bromo- (CAS 946-03-2)
- Methyl 4-((5-formylfuran-2-yl)methoxy)benzoate (CAS 1399653-41-8)
- 2-(3-(4-Methylbenzoyl)-1H-pyrrol-1-yl)acetic acid (CAS 499214-43-6)
- (2-(Morpholinosulfonyl)phenyl)boronic acid (CAS 957062-65-6)
- (1-tert-Butylvinyloxy)trimethylsilane (CAS 17510-46-2)
- 2-(2-Amino-5-(4-(trifluoromethyl)phenyl)pyridin-4-yl)acetic acid (CAS 1261799-39-6)
- 2-(4-Hydroxyphenyl)-N-(piperidin-4-yl)acetamide (CAS 1097827-25-2)
- Sodium 2-mercapto-1H-benzo[d]imidazole-5-sulfonate (CAS 53918-03-9)
- 5-(((tert-Butoxycarbonyl)amino)methyl)cyclohex-1-enecarboxylic acid (CAS 1434141-75-9)
- Vibunazole (CAS 80456-55-9)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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