3-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide CAS 65017-48-3
| CAS No. | 65017-48-3 |
| Molecular Formula | C5H7BrO2S |
| Molecular Weight | 211.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide (CAS 65017-48-3) is a high-purity analytical reference standard with the molecular formula C5H7BrO2S and a molecular weight of 211.08 g/mol.
The molecular framework of 3-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide (C5H7BrO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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.
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.
As a certified reference material (CRM), 3-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide 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 | C5H7BrO2S |
| Molecular Weight | 211.08 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) | 2.0 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 3-(Bromomethyl)-2,5-dihydrothiophene 1,1-dioxide (CAS 31554-48-0)
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- 6-methyl-1H-indazole-5-carbaldehyde (CAS 1638771-81-9)
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- 2-(3,5-Dimethylphenyl)propanoic acid (CAS 1226149-97-8)
- Methyl 3-chloro-2-fluoropropanoate (CAS 55900-27-1)
- 2,4-Dibromo-3,5-dimethylphenol (CAS 38730-39-1)
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