4-Bromo-5-fluorothiophene-2-carboxylic acid CAS 2090639-28-2
| CAS No. | 2090639-28-2 |
| Molecular Formula | C5H2BrFO2S |
| Molecular Weight | 225.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-5-fluorothiophene-2-carboxylic acid (C5H2BrFO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/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.
CATO supplies 4-Bromo-5-fluorothiophene-2-carboxylic acid (CAS 2090639-28-2), a certified reference material (molecular formula C5H2BrFO2S, MW 225.04 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.
CATO manufactures 4-Bromo-5-fluorothiophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H2BrFO2S |
| Molecular Weight | 225.04 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
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- ([Ir(dF(CF3ppy)2)(5,5'-CF3-bpy)]PF6 (CAS 1973375-72-2)
- 2-Amino-4-methoxy-5-[3-(4-morpholinyl)propoxy]benzamide (CAS 1640351-46-7)
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- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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