4-Pyridylboronic acid (CAS 1692-15-5)

Application and positioning

The para isomer delivers a 4-pyridyl group in a single step, which is why it appears in kinase-inhibitor and ligand scaffolds. It protodeborates more readily than the 3-isomer, so it is best used soon after opening, under mildly basic conditions. 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

• 9-Phenanthrene boronic acid (CAS 68572-87-2)
• [1,1′:3′,1”-terphenyl]-5′-yl-boronic acid (CAS 128388-54-5)
• [9-(2-Naphthalenyl)-9H-carbazol-3-yl]-boronic acid (CAS 1133057-98-3)
• anthracene-9-yl-boronic acid (CAS 100622-34-2)

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