2-Ethyl-2-hydroxy-8-methoxy-2H-cyclohepta[b]furan-7(3H)-one CAS 690233-34-2
| CAS No. | 690233-34-2 |
| Molecular Formula | C12H14O4 |
| Molecular Weight | 222.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethyl-2-hydroxy-8-methoxy-2H-cyclohepta[b]furan-7(3H)-one (C12H14O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2-Ethyl-2-hydroxy-8-methoxy-2H-cyclohepta[b]furan-7(3H)-one (CAS 690233-34-2), a certified reference material (molecular formula C12H14O4, MW 222.24 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 | C12H14O4 |
| Molecular Weight | 222.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
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Recommended Standards
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- 4-Methyl-1-piperazinecarboxaldehyde (CAS 7556-55-0)
- 2-bromanyl-1-ethyl-pyridin-1-ium tetrafluoroborate 2-bromo-1-ethylpyridin-1-ium tetrafluoroborate 878-23-9 A842381 (CAS 878-23-9)
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- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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