5-Bromospiro[benzo[c]fluorene-7,9'-fluorene] CAS 1175203-78-7
| CAS No. | 1175203-78-7 |
| Molecular Formula | C29H17Br |
| Molecular Weight | 445.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromospiro[benzo[c]fluorene-7,9'-fluorene] (CAS 1175203-78-7) is a high-purity analytical reference standard with the molecular formula C29H17Br and a molecular weight of 445.35 g/mol.
5-Bromospiro[benzo[c]fluorene-7,9'-fluorene] (C29H17Br) contains bromine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 5-Bromospiro[benzo[c]fluorene-7,9'-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 | C29H17Br |
| Molecular Weight | 445.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
Related Bromospiro Standards
- 9-Bromospiro[benzo[c]fluorene-7,9'-xanthene] (CAS 2192306-77-5)
- 2'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1477458-14-2)
- 4'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1609484-29-8)
- 4-Bromospiro[fluorene-9,9’-xanthene] (CAS 1609484-45-8)
- 3'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1621397-55-4)
- 2-Bromospiro[9H-fluorene-9,9'-[9H]xanthene] (CAS 899422-06-1)
- Benzyl 5-bromospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 1375076-92-8)
- 1’-Boc-6-bromospiro[chroman-2,4’-piperidin]-4-one (CAS 690632-38-3)
Recommended Standards
- CAS 2227549-00-8 (CAS 2227549-00-8)
- 9-Phenyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-9H-carbazole (CAS 1219956-30-5)
- Sodium 4-((2-(4-nitrophenyl)hydrazono)methyl)benzene-1,3-disulfonate (CAS 193149-77-8)
- 9-(4'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazole (CAS 1311408-02-2)
- 2-Amino-5-methoxy-4-methylbenzoic acid (CAS 90972-30-8)
- 6-Chloro-2,2-dimethyl-2,3-dihydrobenzofuran (CAS 96126-97-5)
- ((2R,3S,5R)-3-Hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl pivalate (CAS 40733-25-3)
- 3-{2-[4-(Benzyloxy)phenoxy]ethyl}piperidinehydrochloride (CAS 1219961-20-2)
- N-(3,4-Dimethylphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477330-18-0)
- 2-(2,4-Dichlorophenyl)thiazolidine-4-carboxylic acid (CAS 72678-84-3)
- tert-Butyl 1-(3-fluoro-2-methylbenzyl)piperidin-4-ylcarbamate (CAS 1286275-70-4)
- 4-Hydroxy-6-(methylsulfonyl)quinazoline (CAS 183322-50-1)
- 3-Bromo-N,N-diethyl-5-(trifluoromethyl)benzenesulfonamide (CAS 951885-25-9)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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