5-Bromo-2-methyl-4-nitrothiophene-3-sulfonyl Chloride CAS 82834-49-9
| CAS No. | 82834-49-9 |
| Molecular Formula | C5H3BrClNO4S2 |
| Molecular Weight | 320.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-2-methyl-4-nitrothiophene-3-sulfonyl Chloride (CAS 82834-49-9) is a high-purity analytical reference standard with the molecular formula C5H3BrClNO4S2 and a molecular weight of 320.57 g/mol.
The molecular framework of 5-Bromo-2-methyl-4-nitrothiophene-3-sulfonyl Chloride (C5H3BrClNO4S2) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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.
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 manufactures 5-Bromo-2-methyl-4-nitrothiophene-3-sulfonyl Chloride 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.
Physical & Chemical Properties
| Molecular Formula | C5H3BrClNO4S2 |
| Molecular Weight | 320.57 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Why CATO?
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