9-([1,1'-biphenyl]-4-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (CAS 391729-66-0)

Application and positioning

The pinacol ester of 9-(4-biphenylyl)carbazole-3-boronic acid is the storage-stable form of the same handle: no anhydride equilibrium and no slow dehydration on the shelf. It is preferred over the free acid for long projects and for couplings run in anhydrous, non-aqueous media. 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 — carbazoles discolour under prolonged UV exposure
• Store at ambient temperature in a dry, dark warehouse, away from strong oxidising agents

Related products

• 9-phenyl-9H,9’H-3,3′-bicarbazole (CAS 1060735-14-9)
• 9H-3,3′-bicarbazole (CAS 1984-49-2)
• 9H-Carbazole-3-carbonitrile (CAS 57102-93-9)
• Biphenyl-4-yl-(4-carbazol-9-yl-phenyl)-amine (CAS 1210470-43-1)

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