| CAS No. | 55854-46-1 |
| Molecular Formula | C4H6BrClO2S2 |
| Molecular Weight | 265.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 (CAS 55854-46-1) is a high-purity analytical reference standard with the molecular formula C4H6BrClO2S2 and a molecular weight of 265.58 g/mol.
The molecular framework of 5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 (C4H6BrClO2S2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C4H6BrClO2S2 |
| Molecular Weight | 265.58 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |