5-Ethyl-2-oxo-1,3-dioxole-4-carboxylic acid CAS 188525-88-4
| CAS No. | 188525-88-4 |
| Molecular Formula | C6H6O5 |
| Molecular Weight | 158.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Ethyl-2-oxo-1,3-dioxole-4-carboxylic acid (CAS 188525-88-4) is a high-purity analytical reference standard with the molecular formula C6H6O5 and a molecular weight of 158.11 g/mol.
The molecular framework of 5-Ethyl-2-oxo-1,3-dioxole-4-carboxylic acid (C6H6O5) is characterized by a carbohydrate-derived structure. 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).
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), 5-Ethyl-2-oxo-1,3-dioxole-4-carboxylic acid 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 | C6H6O5 |
| Molecular Weight | 158.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 2010 |
Recommended Standards
- 2,4-Difluoronicotinamide (CAS 1823943-65-2)
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- 4,6-Difluoronicotinamide (CAS 1823869-07-3)
- 2,5-Difluoronicotinamide (CAS 1934952-86-9)
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