(Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate CAS 6134-91-4
| CAS No. | 6134-91-4 |
| Molecular Formula | C23H23NO5 |
| Molecular Weight | 393.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 393.43 g/mol gives (Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate (CAS 6134-91-4), a certified reference material (molecular formula C23H23NO5, MW 393.43 g/mol) for analytical method development and quality control.
(Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate (C23H23NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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.
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 | C23H23NO5 |
| Molecular Weight | 393.43 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Recommended Standards
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