(9H-fluoren-9-yl)triphenylphosphonium bromide CAS 7253-07-8
| CAS No. | 7253-07-8 |
| Molecular Formula | C31H24P |
| 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.
(9H-fluoren-9-yl)triphenylphosphonium bromide (CAS 7253-07-8) is a high-purity analytical reference standard with the molecular formula C31H24PBr and a molecular weight of 507.41 g/mol.
(9H-fluoren-9-yl)triphenylphosphonium bromide (C31H24PBr) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), (9H-fluoren-9-yl)triphenylphosphonium bromide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C31H24P Br |
| Molecular Weight | 507.41 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
Related H Standards
- (9H-Fluoren-9-yl)methyl 4-amino-4-methylpiperidine-1-carboxylate (CAS 1001754-52-4)
- (9H-Fluoren-9-yl)boronic acid (CAS 100374-79-6)
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-sulfopropanoic acid (CAS 1005412-03-2)
- 1-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-methylcyclohexane-1-carboxylic acid (CAS 1013997-27-7)
- 1-(9h-Fluoren-2-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1019109-76-2)
- 2-[4-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetic acid (CAS 1023821-72-8)
- (9H-Fluoren-9-yl)methyl 2,5-dioxopyrrolidine-1-carboxylate (CAS 102774-86-7)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-methoxyphenyl)acetic acid (CAS 1028530-29-1)
Recommended Standards
- 2,7-Dichlorothianthrene (CAS 60420-80-6)
- 5-(chloromethyl)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine hydrochloride (CAS 1864015-04-2)
- Ethyl 2-acetoxy-5-iodobenzoate (CAS 857755-86-3)
- N-(Ethoxycarbonyl)thiopropionamide (CAS 59812-12-3)
- 2-Oxo-4-(pyrazin-2-yl)-1,2-dihydropyridine-3-carboxylic acid (CAS 89996-11-2)
- [(2S,3S,4S)-3,4,5-triacetoxytetrahydrofuran-2-yl]methyl acetate (CAS 176299-71-1)
- [2-(diethylamino)pyrimidin-5-yl]boronic acid (CAS 1888409-34-4)
- 4-Acetamido-6-iodopyridine-2-sulfonyl chloride (CAS 1393582-75-6)
- 2-(Chloromethyl)-3-(difluoromethyl)-5-fluoropyridine-4-carboxaldehyde (CAS 1805602-13-4)
- Peptide 442 (CAS CATO-CPTD788442)
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