(5-Methoxy-5-Oxopentyl) Triphenyl-Phosphonium Bromide CAS 79837-79-9
| CAS No. | 79837-79-9 |
| Molecular Formula | C24H26O2P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (5-Methoxy-5-Oxopentyl) Triphenyl-Phosphonium Bromide (C24H26O2PBr) is characterized by a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(5-Methoxy-5-Oxopentyl) Triphenyl-Phosphonium Bromide (CAS 79837-79-9) is a high-purity analytical reference standard with the molecular formula C24H26O2PBr and a molecular weight of 457.35 g/mol.
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.
CATO manufactures (5-Methoxy-5-Oxopentyl) Triphenyl-Phosphonium Bromide 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 | C24H26O2P Br |
| Molecular Weight | 457.35 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
Related Methoxy Standards
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- 6-Methoxy-4-nitro-1H-indazole (CAS 1000341-08-1)
Recommended Standards
- 1,4-Dichloro-5,8-difluorophthalazine (CAS 215870-99-8)
- 3-Bromo-1-isopropylpyridin-2(1h)-one (CAS 1780774-80-2)
- 2-((2,3-Dimethylphenyl)amino)-N-(2,2,2-trifluoroethyl)acetamide (CAS 1197925-44-2)
- Methyl 1-Methyl-1,2,3-triazole-5-carboxylate (CAS 105020-38-0)
- 3-hexyl-1,2-oxazol-5-amine (CAS 1378851-83-2)
- 3,4-Dichlorocyclobut-1-ene (CAS 41326-64-1)
- 2-Cyclobutylpiperazine (CAS 907972-11-6)
- (E)-3-((4-Chlorobenzyl)thio)-3-(phenylamino)-2-(phenylsulfonyl)acrylonitrile (CAS 866347-07-1)
- 3-(4-Bromophenyl)cyclohexanone (CAS 25158-78-5)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com