3,4-Dibromothiophene-2-sulfonyl chloride CAS 128852-15-3
| CAS No. | 128852-15-3 |
| Molecular Formula | C4HBr2ClO2S2 |
| Molecular Weight | 340.44 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.
CATO supplies 3,4-Dibromothiophene-2-sulfonyl chloride (CAS 128852-15-3), a certified reference material (molecular formula C4HBr2ClO2S2, MW 340.44 g/mol) for analytical method development and quality control.
The molecular framework of 3,4-Dibromothiophene-2-sulfonyl chloride (C4HBr2ClO2S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
As a certified reference material (CRM), 3,4-Dibromothiophene-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 | C4HBr2ClO2S2 |
| Molecular Weight | 340.44 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1993 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |
Related Dibromothiophene Standards
- 2,5-Dibromothiophene-3-sulfonyl chloride (CAS 70374-40-2)
- 4,5-Dibromothiophene-2-sulfonyl chloride (CAS 81606-31-7)
- 2,5-Dibromothiophene-3,4-dicarboxylic Acid (CAS 190723-12-7)
- 2,5-Dibromothiophene-3-sulfonamide (CAS 7182-36-7)
- 4,5-Dibromothiophene-2-sulfonamide (CAS 77893-69-7)
- Ethyl 3,4-dibromothiophene-2-carboxylate (CAS 153562-67-5)
- Ethyl 4,5-dibromothiophene-3-carboxylate (CAS 1823905-03-8)
- Ethyl 2,5-dibromothiophene-3-carboxylate (CAS 289470-44-6)
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