Ethyl 6-bromo-7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate CAS 128811-91-6
| CAS No. | 128811-91-6 |
| Molecular Formula | C14H16BrNO4S |
| Molecular Weight | 374.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H16BrNO4S, Ethyl 6-bromo-7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 374.25 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.
CATO supplies Ethyl 6-bromo-7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 128811-91-6), a certified reference material (molecular formula C14H16BrNO4S, MW 374.25 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H16BrNO4S |
| Molecular Weight | 374.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-Bromo-2-methyl-6-nitrobenzaldehyde (CAS 83647-41-0)
- 2-Cyano-N-propylacetamide (CAS 52493-35-3)
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