4-(4-bromophenyl)dibenzofuran (CAS 955959-84-9)

Application and positioning

The oxygen analogue of the thiophene compound, with the same para-bromo arm. Dibenzofuran is the weaker donor; pick it when the thiophene version shifts emission too far. Laurand supplies it from audited Chinese producers in kilogram to multi-hundred-kilogram lots, with the documentation your market requires.

Quality and documentation

• Batch-specific Certificate of Analysis with HPLC or GC purity and a full impurity profile
• Trace metal report (Pd, Fe, Cu) on request — residual catalyst is what limits OLED device lifetime
• Water content by Karl Fischer and residual solvent data for solution-processed grades
• SDS in the language of your market, with GHS classification for the destination
• Pre-shipment sample for laboratory approval on first orders

Packaging and handling

• 1 kg, 5 kg and 25 kg fibre drums with inner PE liner; amber glass bottles for gram to kilogram quantities on request
• Sealed and protected from light — aromatic OLED intermediates discolour under prolonged UV exposure
• Store at ambient temperature in a dry, dark warehouse, away from strong oxidising agents

Related products

• 4-Bromodibenzothiophene (CAS 97511-05-2)
• 5-Bromo-2-phenylthiophene (CAS 29488-24-2)
• 7-chlorodibenzo[b,d]furan-1-ol (CAS 2226916-90-9)
• Benzo[b]naphtho[1,2]thiophene (CAS 205-43-6)

Values marked (predicted) are calculated estimates; the remaining data are published literature values. The specification of the delivered lot is confirmed with the quotation.