Ethene-1,2-diylbis(triphenylphosphonium) bromide CAS 54770-27-3
| CAS No. | 54770-27-3 |
| Molecular Formula | C38H32P2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethene-1,2-diylbis(triphenylphosphonium) bromide (CAS 54770-27-3) is a high-purity analytical reference standard with the molecular formula C38H32P2Br and a molecular weight of 630.53 g/mol.
Ethene-1,2-diylbis(triphenylphosphonium) bromide (C38H32P2Br) contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system. 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. 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 | C38H32P2 2*Br |
| Molecular Weight | 630.53 g/mol |
| 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) | 22.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
Related Ethene Standards
- 4,4'-(Ethene-1,2-diyl)dibenzoic acid (CAS 100-31-2)
- (E)-(ethene-1,2-diylbis(4,1-phenylene))dimethanol (CAS 101168-88-1)
- (E)-5,5'-(Ethene-1,2-diyl)diisophthalic acid (CAS 1025726-44-6)
- 4,4'-(Ethene-1,2-diyl)bis(N,N-diphenylaniline) (CAS 116942-09-7)
- 6,6-(Ethene-1,2-diyl)bis-(3-nitrobenzenesulfonic acid) (CAS 128-42-7)
- 2,2',2'',2'''-((Ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetrakis(oxy))tetraacetic acid (CAS 1306201-16-0)
- (Z)-4,4'-(Ethene-1,2-diyl)dibenzoic acid (CAS 133005-88-6)
- 4,4’,4’’,4’’’-(Ethene-1,1,2,2-tetrayl)tetrabenzoic Acid (CAS 1351279-73-6)
Recommended Standards
- Bis(4-dimethylaminophenyl)amine (CAS 637-31-0)
- 4-Bromo-1-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1379315-04-4)
- 1-Bromo-4-pentylcyclohex-1-ene (CAS 1033202-26-4)
- Ethyl 5-methyl-3-(3-nitrophenyl)isoxazole-4-carboxylate (CAS 93187-48-5)
- 1-(5-Fluoropyridin-2-yl)-2-methoxyethan-1-ol (CAS 1075756-96-5)
- N-benzylisochromane-1-carboxamide (CAS 889953-33-7)
- N'-(6-fluoropyridin-2-yl)benzenesulfonohydrazide (CAS 338753-86-9)
- 2-Amino-N-cyclopropyl-N-(3-fluorobenzyl)acetamide (CAS 1183700-11-9)
- 2,4,6-Trimethyloxane-4-carboxylic acid (CAS 2091246-88-5)
- Peptide Impurity 82 (CAS 10491-78-8)
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