Ethyl 7,7-dimethyl-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate CAS 77959-77-4
| CAS No. | 77959-77-4 |
| Molecular Formula | C14H16O5 |
| Molecular Weight | 264.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 264.27 g/mol gives Ethyl 7,7-dimethyl-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 7,7-dimethyl-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate (CAS 77959-77-4), a certified reference material (molecular formula C14H16O5, MW 264.27 g/mol) for analytical method development and quality control.
Ethyl 7,7-dimethyl-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate (C14H16O5) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 7,7-dimethyl-2,5-dioxo-5,6,7,8-tetrahydro-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.
Physical & Chemical Properties
| Molecular Formula | C14H16O5 |
| Molecular Weight | 264.27 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
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Recommended Standards
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- (S)-6-(methoxymethyl)-5-azaspiro[2.4]Heptane (CAS 2227197-51-3)
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- Neuropeptide SF (human) (CAS 192387-39-6)
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