| CAS No. | 95690-62-3 |
| Molecular Formula | C16H16N2O4 |
| Molecular Weight | 300.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Trans-5-(2,4-dimethoxyphenyl)-2-(pyridin-3-yl)-4,5-dihydrooxazol-4-ol is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Trans-5-(2,4-dimethoxyphenyl)-2-(pyridin-3-yl)-4,5-dihydrooxazol-4-ol (CAS 95690-62-3), molecular formula C16H16N2O4 and molecular weight 300.31 g/mol, is a CATO reference standard with documented purity and traceability.
Trans-5-(2,4-dimethoxyphenyl)-2-(pyridin-3-yl)-4,5-dihydrooxazol-4-ol (C16H16N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
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.
| Molecular Formula | C16H16N2O4 |
| Molecular Weight | 300.31 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |