5-Bromo-4-chlorothiophene-2-sulfonyl chloride CAS 1307307-49-8
| CAS No. | 1307307-49-8 |
| Molecular Formula | C4HBrCl2O2S2 |
| Molecular Weight | 295.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-4-chlorothiophene-2-sulfonyl chloride (CAS 1307307-49-8) is a high-purity analytical reference standard with the molecular formula C4HBrCl2O2S2 and a molecular weight of 295.99 g/mol.
Structurally, 5-Bromo-4-chlorothiophene-2-sulfonyl chloride (C4HBrCl2O2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 295.99 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 5-Bromo-4-chlorothiophene-2-sulfonyl 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 | 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.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |
Related Bromo Standards
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