| CAS No. | 314761-14-3 |
| Molecular Formula | C21H14N6OS2 |
| Molecular Weight | 430.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 5-Phenyl-2-(4-phenylthiazol-2-yl)-4-(2-(thiazol-2-yl)hydrazono)-2,4-dihydro-3H-pyrazol-3-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.
5-Phenyl-2-(4-phenylthiazol-2-yl)-4-(2-(thiazol-2-yl)hydrazono)-2,4-dihydro-3H-pyrazol-3-one (CAS 314761-14-3) is a high-purity analytical reference standard with the molecular formula C21H14N6OS2 and a molecular weight of 430.51 g/mol.
The molecular framework of 5-Phenyl-2-(4-phenylthiazol-2-yl)-4-(2-(thiazol-2-yl)hydrazono)-2,4-dihydro-3H-pyrazol-3-one (C21H14N6OS2) is characterized by a steroid core, an amide group, sulfur-containing functionality, 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.
| Molecular Formula | C21H14N6OS2 |
| Molecular Weight | 430.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |