1,1-Dimethyl-5-(2-oxo-2-phenylethyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazol-1-ium tetrafluoroborate CAS 78904-69-5
| CAS No. | 78904-69-5 |
| Molecular Formula | C25H25N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,1-Dimethyl-5-(2-oxo-2-phenylethyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazol-1-ium tetrafluoroborate (CAS 78904-69-5), molecular formula C25H25N2OBF4 and molecular weight 456.29 g/mol, is a CATO reference standard with documented purity and traceability.
1,1-Dimethyl-5-(2-oxo-2-phenylethyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazol-1-ium tetrafluoroborate (C25H25N2OBF4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine 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 1,1-Dimethyl-5-(2-oxo-2-phenylethyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazol-1-ium tetrafluoroborate 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.
Physical & Chemical Properties
| Molecular Formula | C25H25N2O BF4 |
| Molecular Weight | 456.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Why CATO?
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