3-[2-(4-Imidazol-1-yl-phenyl)-2-oxoeth-(Z)-ylidene]-3,4-dihydro-1H-quinoxalin-2-one CAS 946384-09-4
| CAS No. | 946384-09-4 |
| Molecular Formula | C19H14N4O2 |
| Molecular Weight | 330.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[2-(4-Imidazol-1-yl-phenyl)-2-oxoeth-(Z)-ylidene]-3,4-dihydro-1H-quinoxalin-2-one (CAS 946384-09-4) is a high-purity analytical reference standard with the molecular formula C19H14N4O2 and a molecular weight of 330.34 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 3-[2-(4-Imidazol-1-yl-phenyl)-2-oxoeth-(Z)-ylidene]-3,4-dihydro-1H-quinoxalin-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-[2-(4-Imidazol-1-yl-phenyl)-2-oxoeth-(Z)-ylidene]-3,4-dihydro-1H-quinoxalin-2-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H14N4O2 |
| Molecular Weight | 330.34 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related Imidazol Standards
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Recommended Standards
- 3-[(3-hydrazino-3-oxopropyl)thio]propanohydrazide (CAS 6292-68-8)
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- 3',6'-Diamino-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 509-72-8)
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(4-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 573975-64-1)
- 3-(naphthalen-1-ylmethyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 476371-69-4)
- 6'-Methoxy-4'-methyl-3,4,5,6-tetrahydro-2,3'-bipyridine (CAS 1352520-14-9)
- Ethyl 5-isopropoxy-1-methyl-1H-pyrazole-3-carboxylate (CAS 1239763-53-1)
- 2,5-Dimethoxy-4-(methoxymethyl)benzoic acid (CAS 1898237-53-0)
- 3-(Cyanomethyl)-6-(difluoromethyl)-4-methylpicolinonitrile (CAS 1805429-03-1)
- tert-Butyl 4-(3-(trifluoromethyl)benzoyl)piperidine-1-carboxylate (CAS 1414778-16-7)
- 8,9-Dimethoxy-[1,2,4]triazolo[3,4-a]isoquinoline (CAS 27210-18-0)
- 1-(6-(1H-Imidazol-1-yl)pyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1707372-95-9)
- Methyl 6-[2-(Trifluoromethoxy)phenyl]nicotinate (CAS 1261782-37-9)
- Tirzepatide (CAS 2023788-19-2)
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