9-(2-Bromopropyl)-9-methyl-9H-fluorene CAS 95281-27-9
| CAS No. | 95281-27-9 |
| Molecular Formula | C17H17Br |
| Molecular Weight | 301.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9-(2-Bromopropyl)-9-methyl-9H-fluorene (CAS 95281-27-9), molecular formula C17H17Br and molecular weight 301.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 9-(2-Bromopropyl)-9-methyl-9H-fluorene (C17H17Br) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 9-(2-Bromopropyl)-9-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 | C17H17Br |
| Molecular Weight | 301.22 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.) | 1984 |
| Halogen Content | Br-containing |
Related Bromopropyl Standards
- 1-(3-Bromopropyl)-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione (Pentoxifylline impurity) (CAS 6493-10-3)
- 7-(3-Bromopropyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1h-purine-2,6-dione (CAS 23146-06-7)
- 3-(3-bromopropyl)-5-nitro-2,3-dihydro-1,3-benzoxazol-2-one (CAS 1157079-54-3)
- (+)-(3-Bromopropyl)boronic Acid Pinanediol Ester (CAS 90084-37-0)
- N-(3-Bromopropyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide (CAS 877402-84-1)
- N-(3-Bromopropyl)-7-chloroquinolin-4-amine (CAS 60548-23-4)
- 4-(3-Bromopropyl)benzoic acid (CAS 6309-79-1)
- 4-(3-Bromopropyl)benzenesulfonyl chloride (CAS 182742-74-1)
Recommended Standards
- 5-Methyl-4-((3-(trifluoromethyl)phenoxy)methyl)isoxazole-3-carboxylic acid (CAS 886503-10-2)
- Ethyl 4-hydroxy-7-(trifluoromethoxy)quinoline-3-carboxylate (CAS 53985-73-2)
- 5-Amino-3-methyl-N-(4-(trifluoromethoxy)phenyl)isoxazole-4-carboxamide (CAS 524036-08-6)
- Ethyl 4-oxo-6-(trifluoromethoxy)-1,4-dihydroquinoline-3-carboxylate (CAS 361367-24-0)
- 3-(Hydroxymethyl)benzofuran-5-ol (CAS 188797-10-6)
- 6-Bromo-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole (CAS 1907643-13-3)
- 1-(6-Methoxy-2-methylsulfanyl-pyrimidin-4-yl)-azetidine-3-carboxylic acid (CAS 1353977-93-1)
- (1R)-2′-(Dimethylamino)[1,1′-binaphthalen]-2-ol (CAS 216320-44-4)
- tert-Butyl 3-oxo-8-azabicyclo[3.2.1]oct-6-ene-8-carboxylate (CAS 736181-18-3)
- 2,2-Dibenzoylbiphenyl (CAS 24018-00-6)
- (S)-1-(3-Chloro-4-fluorophenyl)ethan-1-amine (CAS 2413817-92-0)
- Ethyl 6-chloroimidazo[1,2-a]pyridine-8-carboxylate (CAS 1803247-42-8)
- S-[2-Hydroxy-1-(4-hydroxyphenyl)ethyl]-L-glutathione (CAS 1309781-40-5)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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