3-Bromo-5-chlorothiophene-2-sulfonyl chloride CAS 175205-72-8
| CAS No. | 175205-72-8 |
| Molecular Formula | C4HBrCl2O2S2 |
| Molecular Weight | 295.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-5-chlorothiophene-2-sulfonyl chloride (CAS 175205-72-8) is a high-purity analytical reference standard with the molecular formula C4HBrCl2O2S2 and a molecular weight of 295.99 g/mol.
Based on its molecular formula C4HBrCl2O2S2, 3-Bromo-5-chlorothiophene-2-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 295.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C4HBrCl2O2S2 |
| Molecular Weight | 295.99 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |
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- 1-Benzyl-1,4-diazepan-5-one (CAS 55186-89-5)
- tert-Butyl (1-(3-cyanophenyl)ethyl)carbamate (CAS 2089257-40-7)
- 1-(4-Chlorophenyl)hexan-2-one (CAS 21573-65-9)
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