933219-97-7 Ethyl 3-[4-ethyl-2-(4-methylphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl]-1,2,4-oxadiazole-5-carboxylate MFCD14716227 CAS 933219-97-7
| CAS No. | 933219-97-7 |
| Molecular Formula | C17H17N5O5 |
| Molecular Weight | 371.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
933219-97-7 Ethyl 3-[4-ethyl-2-(4-methylphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl]-1,2,4-oxadiazole-5-carboxylate MFCD14716227 (CAS 933219-97-7), molecular formula C17H17N5O5 and molecular weight 371.35 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 933219-97-7 Ethyl 3-[4-ethyl-2-(4-methylphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl]-1,2,4-oxadiazole-5-carboxylate MFCD14716227 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 371.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C17H17N5O5 |
| Molecular Weight | 371.35 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.) | 1987 |
| Nitrogen Atoms | 5 |
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