(1-Bromo-2-hydroxyethyl)diphenylphosphine oxide CAS 59875-46-6
| CAS No. | 59875-46-6 |
| Molecular Formula | C14H14BrO2P |
| Molecular Weight | 325.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(1-Bromo-2-hydroxyethyl)diphenylphosphine oxide (CAS 59875-46-6) is a high-purity analytical reference standard with the molecular formula C14H14BrO2P and a molecular weight of 325.14 g/mol.
Based on its molecular formula C14H14BrO2P, (1-Bromo-2-hydroxyethyl)diphenylphosphine oxide contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C14H14BrO2P |
| Molecular Weight | 325.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-(4-Bromo-2-fluorophenoxy)-2-phenylacetic acid (CAS 1040314-50-8)
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Recommended Standards
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- 5-(4-Phenylbutyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 21325-53-1)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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