3-ethylfuran-2-carboxylic acid CAS 704913-85-9
| CAS No. | 704913-85-9 |
| Molecular Formula | C7H8O3 |
| Molecular Weight | 140.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-ethylfuran-2-carboxylic acid (C7H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 3-ethylfuran-2-carboxylic acid (CAS 704913-85-9), a certified reference material (molecular formula C7H8O3, MW 140.14 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H8O3 |
| Molecular Weight | 140.14 g/mol |
| 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.) | 1985 |
Related ethylfuran Standards
- 4-ethylfuran-2-carboxylic acid (CAS 1515682-02-6)
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- 5-Ethylfuran-2-carboxamide (CAS 102074-22-6)
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- 4-ethylfuran-2-boronic acid (CAS 2096337-32-3)
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- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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