1-Bromo-9H-fluorene CAS 28314-04-7
| CAS No. | 28314-04-7 |
| Molecular Formula | C13H9Br |
| Molecular Weight | 245.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromo-9H-fluorene.
1-Bromo-9H-fluorene (CAS 28314-04-7) is a high-purity analytical reference standard with the molecular formula C13H9Br and a molecular weight of 245.11 g/mol.
Structurally, 1-Bromo-9H-fluorene (C13H9Br) contains bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 245.11 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures 1-Bromo-9H-fluorene 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 | C13H9Br |
| Molecular Weight | 245.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1965 |
| Halogen Content | Br-containing |
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- 2-(4-bromo-2-ethoxyphenyl)ethan-1-ol (CAS 943742-31-2)
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- 3-Chloromethyl-pyridine 1-oxide (CAS 82401-08-9)
- 3-((4-Chlorophenyl)sulfonyl)-N-(4,5-dimethylthiazol-2-yl)propanamide (CAS 923422-56-4)
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- 4-((1H-benzo[d]imidazol-1-yl)methyl)benzaldehyde (CAS 118001-88-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com