| CAS No. | 321998-75-8 |
| Molecular Formula | C20H18ClN3O |
| Molecular Weight | 351.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1-{4-[1-(4-chlorophenyl)-1H-pyrazol-5-yl]phenyl}-3,3-dimethylazetidin-2-one (CAS 321998-75-8), a certified reference material (molecular formula C20H18ClN3O, MW 351.83 g/mol) for analytical method development and quality control.
1-{4-[1-(4-chlorophenyl)-1H-pyrazol-5-yl]phenyl}-3,3-dimethylazetidin-2-one (C20H18ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 1-{4-[1-(4-chlorophenyl)-1H-pyrazol-5-yl]phenyl}-3,3-dimethylazetidin-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C20H18ClN3O |
| Molecular Weight | 351.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |