10,10′-dibromo-9,9′-bianthracene CAS 121848-75-7
| CAS No. | 121848-75-7 |
| Molecular Formula | C28H16Br2 |
| Molecular Weight | 512.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
10,10′-dibromo-9,9′-bianthracene (C28H16Br2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
10,10′-dibromo-9,9′-bianthracene (CAS 121848-75-7) is a high-purity analytical reference standard with the molecular formula C28H16Br2 and a molecular weight of 512.23 g/mol.
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 | C28H16Br2 |
| Molecular Weight | 512.23 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related dibromo Standards
- 5,5'-Dibromo-1,1'-bianthracene (CAS 912479-44-8)
- 5,8-Dibromo-2,3-dioctylquinoxaline (CAS 936711-05-6)
- N-(2,6-Dibromo-4-fluorophenyl)-1-(diphenylphosphoryl)methanethioamide (CAS 680213-13-2)
- N-(2,6-Dibromo-4-methylphenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 618415-71-7)
- N-(2,6-Dibromo-4-methylphenyl)-2-((4-ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 585563-26-4)
- (11bR)-2,6-Dibromo-4-hydroxy-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (CAS 1065214-93-8)
- 1,2-Dibromo-1,1,2,3,3,4,4,5,5,6,6,7,7,7-tetradecafluoroheptane (CAS 678-32-0)
- 3,6-Dibromo-α-[[(2-chlorophenyl)amino]methyl]-9H-carbazole-9-ethanol (CAS 327026-16-4)
Recommended Standards
- 4,4,5,5,6,6,7,7,8,9,9,9-Dodecafluoro-2-hydroxy-8-(trifluoromethyl)nonyl methacrylate (CAS 16083-81-1)
- Oxyfluorfen Impurity 2 (CAS 50594-75-7)
- 1-Bromo-2-(bromomethyl)-3-methylbutane (CAS 64273-85-4)
- Bromophenol red, indicator (5.0-6.8) Bromophenol red, indicator (CAS 2800-80-8)
- 1220017-07-1 N-Benzyl-N-(4-piperidinylmethyl)-1-ethanaminedihydrochloride (CAS 1220017-07-1)
- 2-Isobutylquinazolin-4(1H)-one (CAS 88976-10-7)
- 2-(Pyrrolidin-2-yl)-4-[2-(trifluoromethyl)phenyl]-1h-imidazole dihydrochloride (CAS 1354952-51-4)
- Ethyl 5-(chloromethyl)-2,6-dimethylnicotinate (CAS 77825-10-6)
- N3,N3,N5,N5-tetramethyl-1-(thiophen-2-ylsulfonyl)-1H-1,2,4-triazole-3,5-diamine (CAS 478032-14-3)
- 1'-Oxospiro[cyclopentane-1,3'-isochroman]-4'-carboxylic acid (CAS 1263215-20-8)
- Ethyl 2-oxo-5-(trifluoromethyl)-1,2-dihydropyridine-4-carboxylate (CAS 1227508-49-7)
- 5-(Dimethylamino)-2-ethylphenol (CAS 855409-58-4)
- 2-Oxo-N-(1-(3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-1,2-dihydropyridine-3-carboxamide (CAS 1326899-64-2)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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