CAS 1591-30-6 appears in our catalog under these names: 4,4'-Biphenyldicarbonitrile, 98%, [1,1'-Biphenyl]-4,4'-dicarbonitrile, 98%, (1,1'–Biphenyl)–4,4'–dicarbonitrile, Biphenyl-4,4'-dicarbonitrile, 98% , 4,4'-Biphenyldicarbonitrile. Offered by: Combi-blocks, Chemat Brand, GLPBio, Thermo Scientific (Alfa Aesar), Biosynth. Available pack sizes: 1g, 25g, 5g, on request, 10g, 50g, 100g, 250mg.