Ethyl 8-ethoxy-2-oxo-2H-chromene-3-carboxylate CAS 117382-66-8
| CAS No. | 117382-66-8 |
| Molecular Formula | C14H14O5 |
| Molecular Weight | 262.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 8-ethoxy-2-oxo-2H-chromene-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ethyl 8-ethoxy-2-oxo-2H-chromene-3-carboxylate (CAS 117382-66-8) is a high-purity analytical reference standard with the molecular formula C14H14O5 and a molecular weight of 262.26 g/mol.
Ethyl 8-ethoxy-2-oxo-2H-chromene-3-carboxylate (C14H14O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C14H14O5 |
| Molecular Weight | 262.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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- tert-Butyl ((1S,2S)-2-hydroxycycloheptyl)carbamate (CAS 145106-44-1)
- 3-Acetyl-1-vinylpyrrolidin-2-one (CAS 727418-59-9)
- 3-Bromo-4-(dimethylamino)benzaldehyde (CAS 56479-63-1)
- Metronidazole-13C2,15N2 (CAS 1173020-03-5)
- 2-[5-(4-methylphenyl)-1,3-oxazol-2-yl]benzoic acid (CAS 88877-88-7)
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- Methyl 7-cis-nonadecenoate (CAS 146407-37-6)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com