5-bromo-4-methyl-thiophene-2-carbaldehyde CAS 189331-47-3
| CAS No. | 189331-47-3 |
| Molecular Formula | C6H9BrOS |
| Molecular Weight | 209.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-bromo-4-methyl-thiophene-2-carbaldehyde (CAS 189331-47-3), a certified reference material (molecular formula C6H9BrOS, MW 209.10 g/mol) for analytical method development and quality control.
The molecular framework of 5-bromo-4-methyl-thiophene-2-carbaldehyde (C6H9BrOS) is characterized by sulfur-containing functionality, 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), 5-bromo-4-methyl-thiophene-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.
Physical & Chemical Properties
| Molecular Formula | C6H9BrOS |
| Molecular Weight | 209.10 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related bromo Standards
- 4-bromo-5-methyl-thiophene-2-carbaldehyde (CAS 29421-75-8)
- 1-(3-BROMO-2-THIENYL)-1-ETHANONE 1-(3-BROMO-2-THIENYL)ETHANONE 1-(3-BROMOTHIOPHEN-2-YL)ETHAN-1-ONE 1-(3-BROMOTHIOPHEN-2-YL)ETHANONE 42877-08-7 BC003233 BUTTPARK 145\50-58 (CAS 42877-08-7)
- 5-bromo-1H-thieno[2,3-c]pyrazole (CAS 1511732-68-5)
- 5-bromo-1H-thieno[3,2-c]pyrazole (CAS 848357-83-5)
- 2-Bromo-2-methylhexanoic acid (CAS 100960-69-8)
- 2-bromo-5-tert-butyl-1,3,4-oxadiazole (CAS 1016820-98-6)
- 4-Bromo-3-methoxyphenol (CAS 102127-34-4)
- 5-Bromo-1-methyl-3H-indene (CAS 119999-25-6)
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