N-{5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-3-yl}-4-methylbenzenecarboxamide CAS 1164563-84-1
| CAS No. | 1164563-84-1 |
| Molecular Formula | C19H20N2O4 |
| Molecular Weight | 340.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 340.37 g/mol gives N-{5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-3-yl}-4-methylbenzenecarboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-{5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-3-yl}-4-methylbenzenecarboxamide (CAS 1164563-84-1) is a high-purity analytical reference standard with the molecular formula C19H20N2O4 and a molecular weight of 340.37 g/mol.
Structurally, N-{5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-3-yl}-4-methylbenzenecarboxamide (C19H20N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 340.37 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H20N2O4 |
| Molecular Weight | 340.37 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Recommended Standards
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