5-Hydroxy-3-[2-(4-methoxy-phenyl)-2-oxo-ethylidene]-3,4-dihydro-1H-quinoxalin-2-one CAS 1380572-52-0
| CAS No. | 1380572-52-0 |
| Molecular Formula | C17H14N2O4 |
| Molecular Weight | 310.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-Hydroxy-3-[2-(4-methoxy-phenyl)-2-oxo-ethylidene]-3,4-dihydro-1H-quinoxalin-2-one (CAS 1380572-52-0), a certified reference material (molecular formula C17H14N2O4, MW 310.30 g/mol) for analytical method development and quality control.
Structurally, 5-Hydroxy-3-[2-(4-methoxy-phenyl)-2-oxo-ethylidene]-3,4-dihydro-1H-quinoxalin-2-one (C17H14N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 310.30 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.
Physical & Chemical Properties
| Molecular Formula | C17H14N2O4 |
| Molecular Weight | 310.30 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
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Recommended Standards
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- Ethyl 2-naphthimidate (CAS 32796-88-6)
- N-(Furan-3-ylmethyl)-N-(2-methoxyethyl)-4-methylthiophene-2-carboxamide (CAS 1421489-35-1)
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