2-Bromo-9,9-dibutylfluorene CAS 88223-35-2
| CAS No. | 88223-35-2 |
| Molecular Formula | C21H25Br |
| Molecular Weight | 357.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-9,9-dibutylfluorene 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 2-Bromo-9,9-dibutylfluorene (CAS 88223-35-2), a certified reference material (molecular formula C21H25Br, MW 357.33 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H25Br, 2-Bromo-9,9-dibutylfluorene contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 357.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H25Br |
| Molecular Weight | 357.33 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.) | 1982 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-4'-(trans-4-propylcyclohexyl)-1,1'-biphenyl (CAS 101532-36-9)
- 9-Bromo-2,7-di-tert-butyl-9H-fluorene (CAS 1242278-88-1)
- 6-Bromo-4-methoxy-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole (CAS 2306277-58-5)
- 3-(2-Bromo-4-isopropylphenyl)-1,1-diisopropylthiourea (CAS 1924343-26-9)
- 5-Bromo-2-[3-(tert-butyl-dimethyl-silanyloxy)-pyrrolidin-1-yl]-pyridine (CAS 946002-91-1)
- (E)-2-bromo-6-(3-(pyrrolidin-1-yl)-1-(p-tolyl)prop-1-en-1-yl)pyridine (CAS 1246857-70-4)
- 6-Bromo-4-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-68-0)
- 4-Bromo-6-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-78-2)
Recommended Standards
- (4-Amino-2-(ethylsulfonyl)pyrimidin-5-yl)(2,3-difluoro-6-methoxyphenyl)methanone (CAS 741713-38-2)
- 2-Methyl-4-(3-(trifluoromethyl)benzyl)pyrazolo[1,5-a]quinazolin-5(4H)-one (CAS 866050-25-1)
- (1E)-N-{[3-(trifluoromethyl)phenyl]methoxy}-1H,2H-naphtho[2,1-b]furan-1-imine (CAS 338415-21-7)
- 8,9-Dihydropyrido[2,3-b][1,6]Naphthyridin-7(6H)-Yl[3-(Trifluoromethyl)Phenyl]Methanone (CAS 389117-39-9)
- 2-(Azetidin-3-yl)-1-(pyrrolidin-1-yl)ethan-1-one (CAS 1343003-49-5)
- 1-(1,2,3,4-Tetrahydronaphthalen-1-yl)-1H-imidazole (CAS 103294-47-9)
- 7,9-Dimethoxy-3-methyl-1H-benzo[g]isochromene-5,10-dione (CAS 36379-74-5)
- Methyl 3-amino-2-methoxy-5-methylbenzoate hydrochloride (CAS 1203898-09-2)
- 6-(2-(4-(4-Fluorobenzoyl)piperidin-1-yl)ethyl)-7-methyl-2H-thiazolo[3,2-a]pyrimidin-5(3H)-one (CAS 86487-64-1)
- 3-(7-Aminobenzo[E][1,2]benzoxazol-1-yl)piperidine-2,6-dione (CAS 2412745-63-0)
- N-(4-Chlorophenyl)-6-methylimidazo[1,2-a]pyrazin-3-amine (CAS 823806-67-3)
- 3-(2-Acetamidoethyl)-1H-indol-5-yl hydrogen sulfate (CAS 94840-68-3)
- 3-((4-Methyl-N-(p-tolyl)phenyl)sulfonamido)propanoic acid (CAS 101585-37-9)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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