(1R,2S)-1,2-dibromo-1,2-diphenylethane CAS 13440-24-9
| CAS No. | 13440-24-9 |
| Molecular Formula | C14H12Br2 |
| Molecular Weight | 340.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(1R,2S)-1,2-dibromo-1,2-diphenylethane (CAS 13440-24-9), molecular formula C14H12Br2 and molecular weight 340.05 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (1R,2S)-1,2-dibromo-1,2-diphenylethane (C14H12Br2) is characterized by bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), (1R,2S)-1,2-dibromo-1,2-diphenylethane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1960 |
| Halogen Content | Br-containing |
Recommended Standards
- Difluoro{[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetic acid (CAS 1190931-41-9)
- 1,2-bis(4-Bromophenyl)ethane (CAS 19829-56-2)
- 6-Iodo-2-(trifluoromethyl)quinazolin-4(1H)-one (CAS 35982-62-8)
- 1,2-Dibromo-1,2-diphenylethane (CAS 5789-30-0)
- 2-Chloro-1-(2,5-dimethyl-1-(p-tolyl)-1H-pyrrol-3-yl)ethan-1-one (CAS 300557-74-8)
- 5-Chloro-2-((tetrahydrofuran-2-yl)methoxy)benzaldehyde (CAS 81995-31-5)
- 1-(4-(Isopentyloxy)benzyl)-5-methylindoline-2,3-dione (CAS 620931-45-5)
- 5-(Furan-2-yl)-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 439111-88-3)
- 1-(2-Methoxyphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1233234-91-7)
- 6-Hydroxy Betamethasone (CAS 24703-00-2)
- 1154906-24-7 4-(1,1-Dimethylpropyl)hexahydro-1H-azepine (CAS 1154906-24-7)
- Phenyl(3-phenyloxiran-2-yl)methanone (CAS 5411-12-1)
- 3-ethyl-5,5-dimethylimidazolidine-2,4-dione (CAS 37021-15-1)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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