2,2',7-Tribromo-9,9'-spirobi[fluorene] CAS 171408-77-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 171408-77-8 |
| Molecular Formula | C25H13Br3 |
| Molecular Weight | 553.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,2',7-Tribromo-9,9'-spirobi[fluorene] (CAS 171408-77-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C25H13Br3. Molecular weight: 553.08 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C25H13Br3 |
| Molecular Weight | 553.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | Br-containing |
Related Tribromo Standards
- 1,3,5-Tribromo-1,6-dichloro-1,2,2,3,4,4,5,6,6-nonafluorohexane (CAS 81059-82-7)
- (SP-4-2)-Tribromo(2,4,6-trimethylpyridine)gold (CAS 97374-28-2)
- 3,7,11-Tribromo-5,5,9,9-tetramethyl-5,9-dihydroquinolino[3,2,1-de]acridine (CAS 73183-36-5)
- 3,4,5-Tribromo-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)benzamide (CAS 1023524-35-7)
- 3-(2,5,7-Tribromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 93798-31-3)
- 3,8,13-Tribromo-10,15-dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole (CAS 1953186-67-8)
- 1,2,2-TRibromo-1-(perfluoro-n-hexyl)ethane (CAS 59665-25-7)
- 1,3,5-Tribromo-2,4,6-tris(bromomethyl)benzene (CAS 29165-34-2)
Recommended Standards
- Bis(2,4,6-trichlorophenyl) 2-benzylmalonate (CAS 15781-74-5)
- 3,6-Dibromo-α-[[(4-bromophenyl)amino]methyl]-9H-carbazole-9-ethanol (CAS 328076-93-3)
- Bepotastine Impurity 16 (CAS CATO-C4X-183916)
- [3-(3-cyanophenyl)phenyl]acetic acid (CAS 1334500-02-5)
- 6-(Chloromethyl)-3-(difluoromethyl)pyridin-2-amine (CAS 1806008-95-6)
- 2-Amino-5-bromo-3-chloropyrazine (CAS 21943-13-5)
- Homoharringtonine-13C,d3 (CAS 1217626-64-6)
- Triphenylsulfonium tetrafluoroborate (CAS 437-13-8)
- Trametinib Impurity N1 (CAS 329941-39-1)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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 13829788188 / jacky.chen@cato-chem.com