Ethyl 4-((3-fluorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate CAS 338792-89-5
| CAS No. | 338792-89-5 |
| Molecular Formula | C14H13FN2O4 |
| Molecular Weight | 292.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 4-((3-fluorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 4-((3-fluorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate (CAS 338792-89-5), molecular formula C14H13FN2O4 and molecular weight 292.26 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 4-((3-fluorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate (C14H13FN2O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Ethyl 4-((3-fluorophenyl)carbamoyl)-5-methylisoxazole-3-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 | C14H13FN2O4 |
| Molecular Weight | 292.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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 DMSO, DMF, methanol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Dimethyl 2-(1-Acetyloxy-2-Methyl-Propyl)-2-Fluoro-3-Oxo-Butanedioate (CAS 6935-49-5)
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- N-Methyl-3-(2-(trifluoromethyl)phenyl)imidazo[1,2-a]pyrazin-8-amine (CAS 787590-77-6)
- 5-{[4-(3-Fluoropropoxy)phenyl]methylene}-2,4,6(1H,3H,5H)-pyrimidinetrione (CAS 477857-23-1)
- 4,5-Dibromo-3-methylthiophene-2-carbaldehyde (CAS 30153-49-2)
- 4-(4-Chloro-1h-pyrazol-1-yl)-2-(ethylamino)butanamide (CAS 1339111-62-4)
- 4-Desmethoxy Omeprazole-d3 Sulfide (CAS 1794938-78-5)
- 4,4,4-Trifluoro-N-(2-iodophenyl)-3-oxobutanamide (CAS 663192-22-1)
- 4H-benzo[b]imidazo[1,2-d][1,4]oxazine-6-carbaldehyde (CAS 876921-41-4)
- 2-Chloro-5,6-difluoroquinoxaline (CAS 1384067-26-8)
- 1-(5-Morpholino-2-nitrophenyl)ethan-1-one (CAS 98440-51-8)
- H-D-Dab(Boc)-OH (CAS 114360-55-3)
- 22288-82-0 7629AD C8H8ClNO3S Methyl 2-(acetylamino)-5-chloro-3-thiophenecarboxylate (CAS 22288-82-0)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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