4'-Bromo-3,5-difluoro-1,1'-biphenyl CAS 204776-95-4
| CAS No. | 204776-95-4 |
| Molecular Formula | C12H7BrF2 |
| Molecular Weight | 269.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4'-Bromo-3,5-difluoro-1,1'-biphenyl is closely related to fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4'-Bromo-3,5-difluoro-1,1'-biphenyl (CAS 204776-95-4), a certified reference material (molecular formula C12H7BrF2, MW 269.08 g/mol) for analytical method development and quality control.
Owing to fluorine/bromine substitution, an aromatic ring system, 4'-Bromo-3,5-difluoro-1,1'-biphenyl is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 269.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 4'-Bromo-3,5-difluoro-1,1'-biphenyl 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 | C12H7BrF2 |
| Molecular Weight | 269.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 2015 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 4-Bromo-2,5-difluoro-1,1'-biphenyl (CAS 121219-09-8)
- 1-Bromo-3-fluoro-2-(3-fluorophenyl)benzene (CAS 1233367-30-0)
- 4'-Bromo-3,4-difluoro-1,1'-biphenyl (CAS 124388-28-9)
- 2-Bromo-4,6-difluoro-1,1'-biphenyl (CAS 1428234-76-7)
- 3'-Bromo-3,4-difluoro-1,1'-biphenyl (CAS 1443311-64-5)
- 3'-Bromo-3,5-difluoro-1,1'-biphenyl (CAS 1443351-14-1)
- 5-Bromo-2,4-difluorobiphenyl (CAS 2230481-35-1)
- ethyl 2-(3-bromo-1-bicyclo[1.1.1]pentanyl)-2,2-difluoro-acetate (CAS 2374230-65-4)
Recommended Standards
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- 1-(2-Nitrophenyl)cyclobutanamine (CAS 1260667-45-5)
- 3-Methyl-1-(m-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one (CAS 110570-19-9)
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