Methyl 3-(oxiran-2-ylmethoxy)isoxazole-5-carboxylate CAS 115697-89-7
| CAS No. | 115697-89-7 |
| Molecular Formula | C8H9NO5 |
| Molecular Weight | 199.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 3-(oxiran-2-ylmethoxy)isoxazole-5-carboxylate (CAS 115697-89-7) is a high-purity analytical reference standard with the molecular formula C8H9NO5 and a molecular weight of 199.16 g/mol.
Based on its molecular formula C8H9NO5, Methyl 3-(oxiran-2-ylmethoxy)isoxazole-5-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 199.16 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO5 |
| Molecular Weight | 199.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 4-[2-(Oxiran-2-yl)ethyl]quinoline (CAS 1550056-39-7)
- 8-[(Oxiran-2-yl)methyl]-1,4-dioxa-8-azaspiro[4.5]decane (CAS 187084-49-7)
- 1,8-Di(oxiran-2-yl)octane (CAS 105339-58-0)
- 4-(Oxiran-2-ylmethoxy)butyl Acrylate (CAS 119692-59-0)
- methyl 4-(oxiran-2-ylmethyl)oxane-4-carboxylate (CAS 1823392-01-3)
- Ethyl 7-(oxiran-2-yl)heptanoate (CAS 1640980-42-2)
- 9-(Oxiran-2-yl)nonanoic acid (CAS 2443-41-6)
- Methyl 8-(oxiran-2-yl)octanoate (CAS 87321-84-4)
Recommended Standards
- Ethyl 1-Methyl-4-nitroimidazole-2-carboxylate (CAS 109012-23-9)
- Ethyl (4-nitro-1H-pyrazol-3-yl)acetate (CAS 1171521-77-9)
- 1-(2-Hydroxyethyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 1049130-55-3)
- 2-(4-Methyl-3-nitro-1h-pyrazol-1-yl)propanoic acid (CAS 1174887-31-0)
- 1-Iodohexane (CAS 638-45-9)
- 2,4-Dibromo-5-fluorobenzenesulfonyl chloride (CAS 1000578-09-5)
- 2-((4-(Methoxycarbonyl)phenyl)amino)-2-oxoethyl 5-bromonicotinate (CAS 745788-57-2)
- 1-[(2-bromophenyl)methyl]cyclopropan-1-amine hydrochloride (CAS 1803596-30-6)
- Calcium 2-ethylhexanoate (CAS 136-51-6)
- 1,2,5-Oxadiazole-3-carbaldehyde (CAS 1485710-88-0)
- 4-fluoro-22-oxa-1,5,8,13,15,26-hexaazatetracyclo[19.3.1.1¹⁰,¹⁴.0²,⁷]hexacosa-2,4,6,10,12,14(26)-hexaen-9-one (CAS 2227259-22-3)
- 5-Chloro-2-methyl-2,3-dihydrobenzofuran-7-carboxylic acid (CAS 31457-04-2)
- ethyl 1-(cyanomethyl)cyclopropanecarboxylate (CAS 3697-69-6)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com