| CAS No. | 686769-92-6 |
| Molecular Formula | C25H24N4O2S |
| Molecular Weight | 444.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(4-(4-Methoxyphenyl)piperazin-1-yl)(1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)methanone (CAS 686769-92-6), molecular formula C25H24N4O2S and molecular weight 444.55 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H24N4O2S, (4-(4-Methoxyphenyl)piperazin-1-yl)(1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)methanone contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 444.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-(4-Methoxyphenyl)piperazin-1-yl)(1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)methanone 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 | C25H24N4O2S |
| Molecular Weight | 444.55 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |