Ethyl 3-(2-methoxyphenyl)isoxazole-5-carboxylate CAS 378208-61-8
| CAS No. | 378208-61-8 |
| Molecular Formula | C13H13NO4 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 3-(2-methoxyphenyl)isoxazole-5-carboxylate (CAS 378208-61-8), a certified reference material (molecular formula C13H13NO4, MW 247.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H13NO4, Ethyl 3-(2-methoxyphenyl)isoxazole-5-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H13NO4 |
| Molecular Weight | 247.25 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 5-Ethyl-1-(4-methoxyphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1017399-00-6)
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- Methyl 2-(4-methoxyphenyl)-5-methyloxazole-4-carboxylate (CAS 1084941-03-6)
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- 3-((4-Methoxyphenyl)amino)-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 112446-98-7)
- Ethyl 1-(3-methoxyphenyl)-1H-1,2,4-triazole-3-carboxylate (CAS 1245645-50-4)
- 1-[(4-methoxyphenyl)methyl]-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1267866-44-3)
Recommended Standards
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- 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)acetonitrile (CAS 306976-81-8)
- 3-(3,5-Dioxomorpholino)propanoic acid (CAS 1000339-14-9)
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