ethyl 5-benzyloxy-4-oxo-pyran-3-carboxylate CAS 1246743-88-3
| CAS No. | 1246743-88-3 |
| Molecular Formula | C15H24O5 |
| Molecular Weight | 284.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
ethyl 5-benzyloxy-4-oxo-pyran-3-carboxylate (CAS 1246743-88-3) is a high-purity analytical reference standard with the molecular formula C15H24O5 and a molecular weight of 284.35 g/mol.
The molecular framework of ethyl 5-benzyloxy-4-oxo-pyran-3-carboxylate (C15H24O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional 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).
As a certified reference material (CRM), ethyl 5-benzyloxy-4-oxo-pyran-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 | C15H24O5 |
| Molecular Weight | 284.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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- Isocamphane (CAS 473-19-8)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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