Diphenyl(2,4,6-Trimethylbenzoyl)Phosphine Oxide CAS 75980-60-8
| CAS No. | 75980-60-8 |
| Molecular Formula | C22H21O2P |
| Molecular Weight | 348.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diphenyl(2,4,6-Trimethylbenzoyl)Phosphine Oxide (CAS 75980-60-8), molecular formula C22H21O2P and molecular weight 348.37 g/mol, is a CATO reference standard with documented purity and traceability.
Diphenyl(2,4,6-Trimethylbenzoyl)Phosphine Oxide (C22H21O2P) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Diphenyl(2,4,6-Trimethylbenzoyl)Phosphine Oxide 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 | C22H21O2P |
| Molecular Weight | 348.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1978 |
Related Diphenyl Standards
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Why CATO?
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