4-biphenylcarboxylic acid

4-Biphenylcarboxylic acid (CAS 92-92-2), also known as 4-phenylbenzoic acid, is an aromatic carboxylic acid used as a building block and intermediate in pharmaceutical, polymer, and specialty chemical manufacturing.

Where is 4-biphenylcarboxylic acid used?

• Pharmaceuticals: key intermediate in the synthesis of active pharmaceutical ingredients
• Production of sartans and other biphenyl-containing drug compounds
• Liquid crystal polymer formulations and high-performance polyesters where thermal stability is critical
• Coatings and adhesives: crosslinking agent and pH modifier
• Specialty catalyst development: ligand precursor or co-catalyst component in organometallic reaction systems
• Its rigid biphenyl backbone makes it a preferred structural unit where defined molecular geometry is required in synthesis.

Commercial specifications

• Purity specifications typically ranging from 98% to 99%+ by HPLC
• Packaging in laboratory quantities through to bulk industrial volumes