3,6-Dibromo-9H-fluorene CAS 500901-89-3
| CAS No. | 500901-89-3 |
| Molecular Formula | C13H8Br2 |
| Molecular Weight | 324.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,6-Dibromo-9H-fluorene is closely related to bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,6-Dibromo-9H-fluorene (CAS 500901-89-3) is a high-purity analytical reference standard with the molecular formula C13H8Br2 and a molecular weight of 324.01 g/mol.
3,6-Dibromo-9H-fluorene (C13H8Br2) contains bromine substitution, an aromatic ring 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,6-Dibromo-9H-fluorene 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 | C13H8Br2 |
| Molecular Weight | 324.01 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
Related Dibromo Standards
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- 1,4-Dibromo-2,5-bis(methoxymethyl)benzene (CAS 144526-35-2)
- 9,9-Dibromo-9H-fluorene (CAS 15300-75-1)
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Recommended Standards
- Pinaverium Impurity 7 (CAS 26726-81-8)
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- 1,4-bis(2-bromoethoxy)benzene (CAS 5471-84-1)
- 3-Chloro-5-(difluoromethyl)toluene (CAS 1261821-41-3)
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- Ethyl 2-(5-(aminomethyl)-1,2,4-oxadiazol-3-yl)acetate (CAS 780037-08-3)
- 3-Hydroxy-2,2-dimethyl-3-(p-tolyl)propanoic acid (CAS 336185-26-3)
- 4-Cyclopropoxy-N-methylpyridine-2,6-dicarboxamide (CAS 1243402-37-0)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
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