2,5-Bis(4-bromophenyl)-3,4-diphenylcyclopenta-2,4-dienone CAS 54523-24-9
| CAS No. | 54523-24-9 |
| Molecular Formula | C29H18Br2O |
| Molecular Weight | 542.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Bis(4-bromophenyl)-3,4-diphenylcyclopenta-2,4-dienone (C29H18Br2O) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,5-Bis(4-bromophenyl)-3,4-diphenylcyclopenta-2,4-dienone (CAS 54523-24-9), molecular formula C29H18Br2O and molecular weight 542.26 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2,5-Bis(4-bromophenyl)-3,4-diphenylcyclopenta-2,4-dienone 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 | C29H18Br2O |
| Molecular Weight | 542.26 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
Related Bis Standards
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- 2,4,6-Tris(3-bromophenyl)pyridine (CAS 1360743-16-3)
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- 2',3'-Bis(4-bromophenyl)-1,1':4',1''-terphenyl (CAS 1397262-58-6)
- Methyl 2-(1-(4-bromophenyl)ethylidene)-1-(((2-((E)-1-(4-bromophenyl)ethylidene)hydrazine-1-carbonyl)oxy)methyl)hydrazine-1-carboxylate (CAS 1211461-40-3)
- 2-(3-Bromophenyl)-2',6,6'-triphenyl-4,4'-bipyridine (CAS 1956340-64-9)
Recommended Standards
- 4-([1,1'-Biphenyl]-4-yl)-6-(3,5-dibromophenyl)-2-phenylpyrimidine (CAS 1393350-29-2)
- tert-Butyl 4-(4-{[(4,5-dibromo-1H-pyrrol-2-yl)formamido]methyl}phenyl)piperazine-1-carboxylate (CAS 860648-73-3)
- 2,2'-Dibromobianthrone (CAS 34316-54-6)
- Ambroxol Impurity 88 (CAS CATO-C4X-108588)
- 3-(4-Methyl-6-oxo-1,6-dihydropyrimidin-5-yl)propanoic acid (CAS 160096-98-0)
- (1S,5S)-tert-Butyl 2-(aminomethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 2166410-53-1)
- Ethyl 2,2-dibromo-2-fluoroacetate (CAS 565-53-7)
- (2S)-1-{[(4-bromophenyl)methoxy]carbonyl}pyrrolidine-2-carboxylic acid (CAS 144332-75-2)
- Propranolol Impurity 38 (CAS CATO-C4X-151938)
- ((2S,5R)-5-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl dihydrogen phosphate (CAS 117605-34-2)
- Fmoc-Tyr-OH-<SUP>15</SUP>N (CAS 125700-34-7)
- 2-((4-Methyl-4h-1,2,4-triazol-3-yl)methoxy)acetic acid (CAS 1249374-76-2)
- Tert-butyl (4-((6-cyanopyrimidin-4-yl)oxy)phenyl)carbamate (CAS 943313-34-6)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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