Ethyl 5-methyl-4-((4-nitrophenoxy)methyl)isoxazole-3-carboxylate CAS 938006-55-4
| CAS No. | 938006-55-4 |
| Molecular Formula | C14H14N2O6 |
| Molecular Weight | 306.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 5-methyl-4-((4-nitrophenoxy)methyl)isoxazole-3-carboxylate (CAS 938006-55-4), a certified reference material (molecular formula C14H14N2O6, MW 306.27 g/mol) for analytical method development and quality control.
Structurally, Ethyl 5-methyl-4-((4-nitrophenoxy)methyl)isoxazole-3-carboxylate (C14H14N2O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 306.27 g/mol, it falls into the moderately-high-molecular-weight range. 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 5-methyl-4-((4-nitrophenoxy)methyl)isoxazole-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 | C14H14N2O6 |
| Molecular Weight | 306.27 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.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 5-[(5-cyano-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)methyl]-4,5-dihydro-1,2-oxazole-3-carboxylate (CAS 338399-97-6)
- FA-Ala-OSu (M-1345.0001) (CAS 76079-01-1)
- 7'-Hydroxy-2H,2'H-[3,4'-bichromene]-2,2'-dione (CAS 610759-54-1)
- methyl 5-methyl-4-[(5-methyl-2-nitrophenoxy)methyl]isoxazole-3-carboxylate (CAS 938006-51-0)
- 81029-07-4 Gallium(III) perchlorate hydrate, 13.5-15.5% Ga MFCD00167156 (CAS 81029-07-4)
- 4-(Aminomethyl)benzothioamide (CAS 404897-88-7)
- 1-Methyl-4-oxopiperidine 1-oxide (CAS 223741-97-7)
- 1-(4-Methoxyphenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid (CAS 62160-80-9)
- tert-Butyl (1R*,4R*)-4-(cyclopropanecarbonylamino)cyclohexylcarbamate (CAS 1286265-47-1)
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- Ramelteon Impurity 31 (CAS 1204581-50-9)
- 3,5-Difluoro-4-isobutoxyphenylboronic acid (CAS 2096339-84-1)
- Peptide 435 (CAS CATO-CPTD788435)
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