Methyl 4-(4-ethyl-3-hydroxyisoxazol-5-yl)piperidine-1-carboxylate CAS 439944-60-2
| CAS No. | 439944-60-2 |
| Molecular Formula | C12H18N2O4 |
| Molecular Weight | 254.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 4-(4-ethyl-3-hydroxyisoxazol-5-yl)piperidine-1-carboxylate (CAS 439944-60-2) is a high-purity analytical reference standard with the molecular formula C12H18N2O4 and a molecular weight of 254.28 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Methyl 4-(4-ethyl-3-hydroxyisoxazol-5-yl)piperidine-1-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C12H18N2O4 |
| Molecular Weight | 254.28 g/mol |
| Appearance | Off-white to pale 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Methyl 3-biphenyl-4-yl-3-oxopropanoate (CAS 56216-10-5)
- Methyl 4-(4-methylbenzoyl)benzoate (CAS 64141-11-3)
- MEthyl 3'-acetyl[1,1'-biphenyl]-3-carboxylate (CAS 773134-30-8)
- MEthyl 4'-acetyl[1,1'-biphenyl]-4-carboxylate (CAS 525362-25-8)
- Benzyl 2-((2-aminoacetamido)methyl)piperidine-1-carboxylate (CAS 1353982-62-3)
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