Ethyl 5-methyl-3-oxo-5-(trifluoromethyl)tetrahydrofuran-2-carboxylate CAS 2649469-06-5
| CAS No. | 2649469-06-5 |
| Molecular Formula | C9H11F3O4 |
| Molecular Weight | 240.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 5-methyl-3-oxo-5-(trifluoromethyl)tetrahydrofuran-2-carboxylate (CAS 2649469-06-5), a certified reference material (molecular formula C9H11F3O4, MW 240.18 g/mol) for analytical method development and quality control.
Ethyl 5-methyl-3-oxo-5-(trifluoromethyl)tetrahydrofuran-2-carboxylate (C9H11F3O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, 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.
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 | C9H11F3O4 |
| Molecular Weight | 240.18 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F-containing |
Recommended Standards
- Ethyl (4S,5R)-4-hydroxy-5-methyl-5-(trifluoromethyl)-4,5-dihydrofuran-2-carboxylate (CAS 2878423-91-5)
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- 8-(Trifluoromethyl)-1-naphthoic acid (CAS 852103-60-7)
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