4-cyanophenylboronic acid (CAS 126747-14-6)

Application and positioning

The para isomer attaches a nitrile at the end of a biaryl axis, where it serves as the precursor to amides, acids or tetrazoles. It couples cleanly with aryl and heteroaryl halides and is often the last step before a nitrile-to-tetrazole conversion. Laurand supplies it from audited Chinese producers in kilogram to multi-tonne lots, with the documentation your market requires.

Quality and documentation

• Batch-specific Certificate of Analysis with HPLC purity and water content by Karl Fischer
• Anhydride content reported per lot, since arylboronic acids equilibrate with their anhydride form
• 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; pack size confirmed at quotation
• Sealed, dry and protected from light — moisture uptake and oxidation are the main degradation routes
• Store at ambient temperature in a dry warehouse, away from oxidising agents

Related products

• 4-Hydroxyphenylboronic acid (CAS 71597-85-8)
• 4-Nitrophenylboronic acid (CAS 24067-17-2)
• 4-Pyridylboronic acid (CAS 1692-15-5)
• 8-Quinolineboronic acid (CAS 86-58-8)

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