| CAS No. | 22123-83-7 |
| Molecular Formula | C21H23N3O |
| Molecular Weight | 333.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 3-((4-Cyclohexylphenyl)amino)-1-phenyl-1H-pyrazol-5(4H)-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.
3-((4-Cyclohexylphenyl)amino)-1-phenyl-1H-pyrazol-5(4H)-one (CAS 22123-83-7), molecular formula C21H23N3O and molecular weight 333.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H23N3O, 3-((4-Cyclohexylphenyl)amino)-1-phenyl-1H-pyrazol-5(4H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C21H23N3O |
| Molecular Weight | 333.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |