7063-99-2 Ethyl 5-phenyl-3-isoxazolecarboxylate ethyl 5-phenylisoxazole-3-carboxylate CAS 7063-99-2
| CAS No. | 7063-99-2 |
| Molecular Formula | C12H21NO3 |
| Molecular Weight | 227.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7063-99-2 Ethyl 5-phenyl-3-isoxazolecarboxylate ethyl 5-phenylisoxazole-3-carboxylate (CAS 7063-99-2), a certified reference material (molecular formula C12H21NO3, MW 227.30 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H21NO3, 7063-99-2 Ethyl 5-phenyl-3-isoxazolecarboxylate ethyl 5-phenylisoxazole-3-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 227.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C12H21NO3 |
| Molecular Weight | 227.30 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
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