Ethyl5-(4-((tert-Butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate CAS 391248-22-9
| CAS No. | 391248-22-9 |
| Molecular Formula | C17H20N2O5 |
| Molecular Weight | 332.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl5-(4-((tert-Butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate (CAS 391248-22-9), a certified reference material (molecular formula C17H20N2O5, MW 332.35 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl5-(4-((tert-Butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate (C17H20N2O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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.
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 | C17H20N2O5 |
| Molecular Weight | 332.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 6-(2-ethoxy-2-oxoethyl)-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 938189-69-6)
- H-Lys-Glu-Gly-OH (H-4105.0250) (CAS 57866-06-5)
- Ethyl 5-(4-((tert-butoxycarbonyl)amino)phenyl)isoxazole-3-carboxylate (CAS 908581-03-3)
- Isobutyl 4-(benzo[d][1,3]dioxol-5-yl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 296262-72-1)
- Tris(3'-carboxybiphenyl)amine (CAS 2338875-40-2)
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