4-bromo-5-chlorothiophene-2-carbaldehyde CAS 390360-90-4
| CAS No. | 390360-90-4 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-bromo-5-chlorothiophene-2-carbaldehyde 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.
4-bromo-5-chlorothiophene-2-carbaldehyde (CAS 390360-90-4) is a high-purity analytical reference standard with the molecular formula C5H2BrClOS and a molecular weight of 225.49 g/mol.
Based on its molecular formula C5H2BrClOS, 4-bromo-5-chlorothiophene-2-carbaldehyde contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related bromo Standards
- 2-Bromo-5-chlorothiophene-3-carbaldehyde (CAS 1014644-76-8)
- 5-Bromo-2-chlorothiophene-3-carbaldehyde (CAS 120759-16-2)
- 5-Bromo-3-chlorothiophene-2-carbaldehyde (CAS 1503406-39-0)
- 3-Bromo-5-chlorothiophene-2-carbaldehyde (CAS 403640-46-0)
- 4-Bromo-2-thiophenecarbonyl chloride 4-bromothiophene-2-carbonyl chloride 58777-65-4 (CAS 58777-65-4)
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Recommended Standards
- 3-Bromothiophene-2-carbonylchloride (CAS 25796-68-3)
- 4-Bromothiophene-3-carbonyl chloride (CAS 72899-51-5)
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- 2-Bromothiophene-3-carbonyl chloride (CAS 197370-13-1)
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