ethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylate CAS 238749-50-3
| CAS No. | 238749-50-3 |
| Molecular Formula | C9H14BrNO2S |
| Molecular Weight | 280.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
ethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 238749-50-3), molecular formula C9H14BrNO2S and molecular weight 280.18 g/mol, is a CATO reference standard with documented purity and traceability.
ethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylate (C9H14BrNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), ethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylate 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 | C9H14BrNO2S |
| Molecular Weight | 280.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related ethyl Standards
- 2-(6-bromo-8-fluoro-3-quinolyl)ethanol (CAS 2306277-14-3)
- methyl 3-bromo-2-methyl-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 478239-04-2)
- methyl 4-bromo-2-methyl-6H-thieno[2,3-b]pyrrole-5-carboxylate (CAS 2759356-06-2)
- 3-Bromo-2-methyl-1-(2-methyl-1H-indol-3-yl)-propan-1-one (CAS 1134334-75-0)
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Recommended Standards
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- 1-(1,2-dimethylpropyl)-1H-pyrazol-5-amine (CAS 1015845-91-6)
- 4-Aminophlorizin (CAS 82628-89-5)
- 2-((5,6-Bis(4-methoxyphenyl)-1,2,4-triazin-3-yl)(propyl)amino)ethanol (CAS 59663-42-2)
- 4-Cyclopropyl-3-fluoro-2-methylbenzoic acid (CAS 2451903-89-0)
- Methyl 2-(6-oxo-3-phenylpyridazin-1(6H)-yl)acetate (CAS 853319-62-7)
- 4-Isopropyl 2-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate (CAS 350996-98-4)
- 2-Aminothiophene-3-carbaldehyde (CAS 40341-23-9)
- N-(1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl)acetamide (CAS 15376-53-1)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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