9-Bromo-11,11-dimethyl-11H-benzo[a]fluorene CAS 1198396-29-0
| CAS No. | 1198396-29-0 |
| Molecular Formula | C19H15Br |
| Molecular Weight | 323.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 9-Bromo-11,11-dimethyl-11H-benzo[a]fluorene is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 9-Bromo-11,11-dimethyl-11H-benzo[a]fluorene (CAS 1198396-29-0), a certified reference material (molecular formula C19H15Br, MW 323.23 g/mol) for analytical method development and quality control.
Structurally, 9-Bromo-11,11-dimethyl-11H-benzo[a]fluorene (C19H15Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 323.23 g/mol, it falls into the moderately-high-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.
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-Bromo-11,11-dimethyl-11H-benzo[a]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 | C19H15Br |
| Molecular Weight | 323.23 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 5-Bromo-7-((diethylamino)methyl)-2-methylquinolin-8-ol (CAS 113712-96-2)
- 2-Bromo-11,11-dimethyl-11H-benzo[b]fluorene (CAS 1198396-39-2)
- 9-Bromo-7,7-dimethyl-7H-benzo[c]fluorene (CAS 1198396-46-1)
- 4-Bromo-2-[(2-methanesulfonylethyl)sulfanyl]benzaldehyde (CAS 1340309-17-2)
- 3-Bromo-11,11-dimethyl-11H-benzo[b]fluorene (CAS 1674334-59-8)
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Recommended Standards
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- n-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfonamide (CAS 914610-50-7)
- Methyl ((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methyl)glycinate (CAS 676436-40-1)
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- 6-Aminobenzofuran-4,5-diol (CAS 138106-29-3)
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- 4-((5-Aminopyridin-2-yl)oxy)benzoic acid (CAS 887350-55-2)
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