| CAS No. | 73790-36-0 |
| Molecular Formula | C28H63N3P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Butyltris(dibutylamino)phosphonium bromide (CAS 73790-36-0), molecular formula C28H63N3PBr and molecular weight 552.71 g/mol, is a CATO reference standard with documented purity and traceability.
Butyltris(dibutylamino)phosphonium bromide (C28H63N3PBr) contains organophosphorus functionality, bromine 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C28H63N3P Br |
| Molecular Weight | 552.71 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | -1.5 |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |