9-(2-Bromoethyl)-2,7-di-tert-butyl-9H-fluorene CAS 710280-54-9
| CAS No. | 710280-54-9 |
| Molecular Formula | C23H29Br |
| Molecular Weight | 385.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 9-(2-Bromoethyl)-2,7-di-tert-butyl-9H-fluorene is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
9-(2-Bromoethyl)-2,7-di-tert-butyl-9H-fluorene (CAS 710280-54-9) is a high-purity analytical reference standard with the molecular formula C23H29Br and a molecular weight of 385.38 g/mol.
Owing to bromine substitution, a polycyclic aromatic system, 9-(2-Bromoethyl)-2,7-di-tert-butyl-9H-fluorene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 385.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 9-(2-Bromoethyl)-2,7-di-tert-butyl-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 | C23H29Br |
| Molecular Weight | 385.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1985 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 3-Methyl-DL-proline (CAS 3005-84-3)
- 1-Cyclobutanecarbonyl-1,2,3,4-tetrahydro-1,5-naphthyridine (CAS 1311868-01-5)
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- 5-(5-Bromo-2-methoxybenzylidene)-2-(p-tolyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606953-64-4)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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