2,7-dibromo-9-fluorenone CAS 14348-75-5
| CAS No. | 14348-75-5 |
| Molecular Formula | C13H18Br2O |
| Molecular Weight | 350.09 g/mol |
| 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.
2,7-dibromo-9-fluorenone (CAS 14348-75-5), molecular formula C13H18Br2O and molecular weight 350.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2,7-dibromo-9-fluorenone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 350.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H18Br2O |
| Molecular Weight | 350.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
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Recommended Standards
- 1-Bromo-2-(2-bromo-1-(isopentyloxy)ethyl)benzene (CAS 1344295-60-8)
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- 1-Bromo-2-(2-bromo-1-(pentyloxy)ethyl)benzene (CAS 1344038-53-4)
- (E)-1,2-bis(5-bromothiophen-2-yl)ethene (CAS 24844-36-8)
- (S)-2,2'-((5-amino-1-carboxypentyl)azanediyl)diacetic acid hydrate (CAS 875289-80-8)
- 3-(2-Chloro-4-fluorobenzyl)azetidin-3-ol (CAS 1467514-56-2)
- 4-[4-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]butanoic acid (CAS 1795503-08-0)
- 2-(((5-(3-Chloro-4-fluorophenyl)furan-2-yl)methyl)amino)acetic acid (CAS 1279213-71-6)
- 4-(3-Ethyl-1-methyl-1h-1,2,4-triazol-5-yl)-2-methylaniline (CAS 1343370-97-7)
- n-(1-(Furan-2-yl)ethyl)pentan-1-amine (CAS 854703-93-8)
- 1-Chloro-1,1-Difluoro-2-Pentanone (CAS 6301-95-7)
- 3-Chloropropyltriethoxysilane (CAS 5089-70-3)
- 2-Chloro-3-phenylpyrazine (CAS 41270-65-9)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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