Ethyl 5-acetoxy-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-carboxylate CAS 53252-54-3
| CAS No. | 53252-54-3 |
| Molecular Formula | C11H14O6 |
| Molecular Weight | 242.23 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-acetoxy-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-carboxylate (CAS 53252-54-3), molecular formula C11H14O6 and molecular weight 242.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 5-acetoxy-2,5-dimethyl-4-oxo-4,5-dihydrofuran-3-carboxylate (C11H14O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 242.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ethyl 5-acetoxy-2,5-dimethyl-4-oxo-4,5-dihydrofuran-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 | C11H14O6 |
| Molecular Weight | 242.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
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