[4-(carboxymethyl)benzyl](triphenyl)phosphonium bromide CAS 142620-97-1
| CAS No. | 142620-97-1 |
| Molecular Formula | C27H24O2P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
[4-(carboxymethyl)benzyl](triphenyl)phosphonium bromide (CAS 142620-97-1), molecular formula C27H24O2PBr and molecular weight 491.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, [4-(carboxymethyl)benzyl](triphenyl)phosphonium bromide (C27H24O2PBr) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.5, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 491.36 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C27H24O2P Br |
| Molecular Weight | 491.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
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- 5-(Ethylsulfonyl)-4-(4-methoxyphenyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1707605-58-0)
- 1-Iodopropane-d7 (stabilized with copper) (CAS 59012-23-6)
- Palmitoyl Tetrapeptide-7 (CAS 221227-05-0)
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