CAS 5728-44-9 appears in our catalog under these names: 4-(2-Cyanophenyl)benzoic acid, 98%, 2'-Cyano-(1,1'-biphenyl)-4-carboxylic acid, 98%, 2'-Cyano(1,1'-biphenyl)-4-carboxylic acid, 4-(2-cyanophenyl)benzoic Acid, ≥95%, ≥95%, 2'-Cyano[1,1'-biphenyl]-4-carboxylic acid. Offered by: Combi-blocks, AmBeed, Biosynth, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 25g, 10g, 100mg, 250mg.