9-[(2-Bromophenyl)methyl]-9H-fluorene CAS 187754-47-8
| CAS No. | 187754-47-8 |
| Molecular Formula | C20H15Br |
| Molecular Weight | 335.24 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.
9-[(2-Bromophenyl)methyl]-9H-fluorene (CAS 187754-47-8) is a high-purity analytical reference standard with the molecular formula C20H15Br and a molecular weight of 335.24 g/mol.
The molecular framework of 9-[(2-Bromophenyl)methyl]-9H-fluorene (C20H15Br) is characterized by bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 9-[(2-Bromophenyl)methyl]-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 | C20H15Br |
| Molecular Weight | 335.24 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br-containing |
Related Bromophenyl Standards
- N-[(4-Bromophenyl)(4-methoxyphenyl)methyl]ethane-1,2-diamine (CAS 1098340-32-9)
- 2-(4-Bromophenyl)-1,1-diphenylethylene (CAS 18648-66-3)
- 9-(3-Bromophenyl)-9-methyl-9H-fluorene (CAS 2128245-45-2)
- 5-(4-Bromophenyl)-1-(furan-2-ylmethyl)-1h-imidazole-2-thiol (CAS 1105189-69-2)
- 2-((4-Bromophenyl)sulfonamido)-N,N-dimethylpropanamide (CAS 1214838-59-1)
- 1-(4-Bromophenyl)-3-(4-methylbenzyl)thiourea (CAS 133192-89-9)
- 1-(3-Bromophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-03-8)
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Recommended Standards
- (2R,3R,4S,5R)-2-(6-Amino-2-(trifluoromethyl)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 4627-40-1)
- (2-Bromoethene-1,1,2-triyl)tribenzene (CAS 1607-57-4)
- (2R,3R,4S,5R)-2-(6-Amino-8-(trifluoromethyl)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 76513-89-8)
- 2-Bromo-9-methyl-9-phenyl-9H-fluorene (CAS 1548450-68-5)
- 4-Chloro-2-(trifluoromethoxy)aniline (CAS 175205-77-3)
- tert-butyl 5-amino-4-(tert-butoxycarbonylamino)-5-oxo-pentanoate (CAS 2385784-81-4)
- N1-isopropyl-N1-(pyridin-4-ylmethyl)ethane-1,2-diamine (CAS 1249130-88-8)
- 9-tert-Butyl 3-ethyl 7-oxo-9-azabicyclo[3.3.1]nonane-3,9-dicarboxylate (CAS 1419101-15-7)
- Brivudine Impurity 15 (CAS 113890-35-0)
- 3-(2-Isopropoxyphenoxy)piperidine (CAS 902837-37-0)
- 3-(3-Ethoxyphenyl)-4-(((5-methylthiophen-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 613249-80-2)
- N-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-N-(4-chlorobenzyl)-1,1,1-trifluoromethanesulfonamide (CAS 321432-42-2)
- tert-Butyl 3-(4-ethynylpiperidin-1-yl)azetidine-1-carboxylate (CAS 2505498-80-4)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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