4,4'-Dibromo-3,3'-dimethyl-1,1'-biphenyl CAS 61794-96-5
| CAS No. | 61794-96-5 |
| Molecular Formula | C14H12Br2 |
| Molecular Weight | 340.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 340.05 g/mol gives 4,4'-Dibromo-3,3'-dimethyl-1,1'-biphenyl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,4'-Dibromo-3,3'-dimethyl-1,1'-biphenyl (CAS 61794-96-5), molecular formula C14H12Br2 and molecular weight 340.05 g/mol, is a CATO reference standard with documented purity and traceability.
4,4'-Dibromo-3,3'-dimethyl-1,1'-biphenyl (C14H12Br2) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H12Br2 |
| Molecular Weight | 340.05 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 1,2-Dibromo-1,2-diphenylethane (CAS 5789-30-0)
- 1,3-Dibromo-5-(4-methylbenzyl)benzene (CAS 2586126-69-2)
- 3,3'-Dibromo-2,2'-dimethyl-1,1'-biphenyl (CAS 92160-12-8)
- 3,3'-Dibromo-2-methyl-1,1'-biphenyl (CAS 24656-53-9)
- 4,4＇-Dibromo-2,2＇-dimethyl-1,1＇-biphenyl (CAS 31458-17-0)
- 2,4-Dibromo-5,6-dihydrobenzo[h]quinazoline (CAS 1823584-53-7)
- 2,7-Dibromo-9H-fluoren-4-ol (CAS 2140305-35-5)
- 4,5-Dibromo-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylic acid (CAS 1779124-24-1)
Recommended Standards
- 4,4'-Bis(bromomethyl)-1,1'-biphenyl (CAS 20248-86-6)
- 4-Bromo-3-methylphenylboronic acid N-butyldiethanolamine ester (CAS 1451391-62-0)
- 2-(3,4-Bis(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073339-08-8)
- 1,2-bis(4-Bromophenyl)ethane (CAS 19829-56-2)
- 2-((2-Methylquinolin-4-yl)amino)ethanol (CAS 116289-37-3)
- 1,5,8-Trimethyl-6,7-dihydronaphtho[2,1-b]furan (CAS 20013-75-6)
- 3-Chloro-4-(methylsulfanyl)aniline (CAS 5211-01-8)
- 4-[6-(4-Methyl-piperazin-1-yl)-5-trifluoromethyl-pyridin-3-yl]-benzoic acid methyl ester (CAS 1208081-77-9)
- Iron(III) Stearate (CAS 555-36-2)
- 3-(Pentafluorosulfur)benzoyl chloride (CAS 401892-81-7)
- Ethyl 5-fluoro-1-methyl-1h-indole-2-carboxylate (CAS 108797-28-0)
- 3-Fluoro-2-iodo-1-naphthonitrile (CAS 2629318-43-8)
- 5-(trifluoromethyl)-9-oxa-2-azaspiro[5.5]undecane (CAS 1909327-15-6)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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