| CAS No. | 72045-60-4 |
| Molecular Formula | C23H18N4O2S |
| Molecular Weight | 414.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 414.48 g/mol gives 2-(4-Oxo-2-phenylquinazolin-3(4H)-yl)-N-(phenylcarbamothioyl)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(4-Oxo-2-phenylquinazolin-3(4H)-yl)-N-(phenylcarbamothioyl)acetamide (CAS 72045-60-4), molecular formula C23H18N4O2S and molecular weight 414.48 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(4-Oxo-2-phenylquinazolin-3(4H)-yl)-N-(phenylcarbamothioyl)acetamide (C23H18N4O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 2-(4-Oxo-2-phenylquinazolin-3(4H)-yl)-N-(phenylcarbamothioyl)acetamide 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.
| Molecular Formula | C23H18N4O2S |
| Molecular Weight | 414.48 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |