1,2-Dibromo-1,2-diphenylethane CAS 5789-30-0
| CAS No. | 5789-30-0 |
| Molecular Formula | C14H12Br2 |
| Molecular Weight | 340.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 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.
1,2-Dibromo-1,2-diphenylethane (CAS 5789-30-0), molecular formula C14H12Br2 and molecular weight 340.05 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,2-Dibromo-1,2-diphenylethane (C14H12Br2) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 340.05 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1958 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 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-3,3'-dimethyl-1,1'-biphenyl (CAS 61794-96-5)
- 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
- 1,2-bis(4-Bromophenyl)ethane (CAS 19829-56-2)
- (1R,2S)-1,2-dibromo-1,2-diphenylethane (CAS 13440-24-9)
- Difluoro{[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy}acetic acid (CAS 1190931-41-9)
- 6-Iodo-2-(trifluoromethyl)quinazolin-4(1H)-one (CAS 35982-62-8)
- 1-(3-Ethoxyphenyl)prop-2-en-1-one (CAS 1480646-26-1)
- 2-(5-Hydroxy-2,3-dihydro-1H-inden-1-yl)acetic acid (CAS 206112-59-6)
- 1-benzyl-2,3,6-trimethylpiperazine (CAS 1909313-40-1)
- 3-Bromoquinolin-6-yl acetate (CAS 1022151-47-8)
- 6-chloro-4-(nonan-5-yl)-1',2',3',4'-tetrahydro-[1,1'-biphenyl]-2-ol (CAS CATO-C3D-262396)
- (2E)-3-[5-chloro-1-(3-methoxybenzyl)-3-methyl-1H-pyrazol-4-yl]acrylic acid (CAS 1006492-52-9)
- 4-Methyl-6-oxo-1-phenyl-1,6-dihydropyridazine-3,5-dicarbonitrile (CAS 124315-52-2)
- Amisulpride-d5 (CAS 1216626-17-3)
- 915922-16-6 (6-Fluoro-2-oxo-2,3-dihydro-1H-indol-3-yl)acetic acid DTXSID60679771 (CAS 915922-16-6)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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