(2-Bromoethyl)triphenylphosphonium bromide CAS 7301-93-1
| CAS No. | 7301-93-1 |
| Molecular Formula | C20H19BrP |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 450.15 g/mol gives (2-Bromoethyl)triphenylphosphonium bromide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(2-Bromoethyl)triphenylphosphonium bromide (CAS 7301-93-1), molecular formula C20H19BrPBr and molecular weight 450.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (2-Bromoethyl)triphenylphosphonium bromide (C20H19BrPBr) contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.5, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 450.15 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H19BrP Br |
| Molecular Weight | 450.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
Related Bromoethyl Standards
- 2-(2-bromoethyl)[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1000932-43-3)
- N-(2-Bromoethyl)-4-ethoxybenzamide (CAS 100129-14-4)
- 1,2-Bis(2-bromoethyl)disulfane (CAS 1002-40-0)
- N-(2-Bromoethyl)aniline hydrobromide (CAS 1005-66-9)
- 4-(2-Bromoethyl)-1,3,5-trimethyl-1h-pyrazole (CAS 1007505-04-5)
- N-(2-Bromoethyl-d4)phthalimide (CAS 1009307-39-4)
- 1-(2-Bromoethyl)-4-chloro-1H-pyrazole (CAS 1011801-59-4)
- 1-(2-(2-Bromoethyl)phenyl)ethanone (CAS 101531-22-0)
Recommended Standards
- 1-(6-Methylpyrazin-2-yl)piperidine-3-carboxylic acid (CAS 930111-02-7)
- 6-Chloro-2-(cyanomethyl)-5-(difluoromethyl)nicotinonitrile (CAS 1806869-10-2)
- 3-(4-Chloro-2-nitrophenoxy)propanoic acid (CAS 5791-14-0)
- 890100-37-5 4-(3,5-Dimethylbenzoyl)phenyl acetate DTXSID10641746 (CAS 890100-37-5)
- (4-(5-Bromopyridin-3-yl)phenyl)methanol (CAS 1171896-44-8)
- 3-(Methoxymethyl)isothiazol-5-amine (CAS 1448337-86-7)
- 3-chloro-6-(4-chloropiperidin-1-yl)pyridazine (CAS 1185318-06-2)
- 4-((4-Bromobenzyl)(4H-1,2,4-triazol-4-yl)amino)benzonitrile (CAS 148869-05-0)
- 3-Chlorobenzylisocyanide (CAS 106106-81-4)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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