Ethyl 2-(3,5-difluoro-2-propoxyphenyl)-2-oxoacetate CAS 1443334-22-2
| CAS No. | 1443334-22-2 |
| Molecular Formula | C13H14F2O4 |
| Molecular Weight | 272.24 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-(3,5-difluoro-2-propoxyphenyl)-2-oxoacetate (CAS 1443334-22-2) is a high-purity analytical reference standard with the molecular formula C13H14F2O4 and a molecular weight of 272.24 g/mol.
Based on its molecular formula C13H14F2O4, Ethyl 2-(3,5-difluoro-2-propoxyphenyl)-2-oxoacetate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.24 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.
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 | C13H14F2O4 |
| Molecular Weight | 272.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
Related Ethyl Standards
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- Ethyl 2-(3,4-difluoro-5-propoxyphenyl)-2-oxoacetate (CAS 1443310-38-0)
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