Ethyl 2-Oxo-2-(2-oxotetrahydro-2H-pyran-3-yl)acetate CAS 61202-99-1
| CAS No. | 61202-99-1 |
| Molecular Formula | C9H12O5 |
| Molecular Weight | 200.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ethyl 2-Oxo-2-(2-oxotetrahydro-2H-pyran-3-yl)acetate (C9H12O5) 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 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).
Ethyl 2-Oxo-2-(2-oxotetrahydro-2H-pyran-3-yl)acetate (CAS 61202-99-1) is a high-purity analytical reference standard with the molecular formula C9H12O5 and a molecular weight of 200.19 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 2-Oxo-2-(2-oxotetrahydro-2H-pyran-3-yl)acetate 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 | C9H12O5 |
| Molecular Weight | 200.19 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
Recommended Standards
- Ethyl 2-ethoxy-4-oxo-4,5-dihydrofuran-3-carboxylate (CAS 36717-48-3)
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- Ethyl 2-amino-2-(3-methoxyisoxazol-5-yl)acetate (CAS 746568-85-4)
- Ethyl 3-(methoxymethoxy)-1H-pyrazole-4-carboxylate (CAS 675149-54-9)
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- Carvedilol Impurity 25 (CAS 1076199-79-5)
- (4-Chloro-6-methylpyridin-2-yl)methanol (CAS 98280-32-1)
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- 1-(4-(4-Bromobenzoyl)piperazin-1-yl)propan-1-one (CAS 1311756-76-9)
- 1-(4-Bromo-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethanone (CAS 1675968-04-3)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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