4-(2,4-dimethoxyÂÂbenzÂylidene)-5-oxo-2-phenylÂoxazoline CAS 118555-99-0
| CAS No. | 118555-99-0 |
| Molecular Formula | C18H15NO4 |
| Molecular Weight | 309.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2,4-dimethoxyÂÂbenzÂylidene)-5-oxo-2-phenylÂoxazoline (CAS 118555-99-0) is a high-purity analytical reference standard with the molecular formula C18H15NO4 and a molecular weight of 309.32 g/mol.
4-(2,4-dimethoxyÂÂbenzÂylidene)-5-oxo-2-phenylÂoxazoline (C18H15NO4) 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. 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.
As a certified reference material (CRM), 4-(2,4-dimethoxyÂÂbenzÂylidene)-5-oxo-2-phenylÂoxazoline 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 | C18H15NO4 |
| Molecular Weight | 309.32 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Argatroban Impurity 125 (CAS CATO-C4X-1007125)
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