CAS 581-46-4 appears in our catalog under these names: 3,3'-Bipyridine, 97%, 3,3‚Ä≤-Bipyridyl, 95-<97%, 3,3‚Ä≤-Bipyridyl, ≥97-<99%, 3,3'-Bipyridine, 98%, 3,3'–Bipyridine. Offered by: Combi-blocks, Hoffman Fine Chemicals, AmBeed, GLPBio, TCI. Available pack sizes: 5g, 25g, 10g, 1g, 50g, 100g, 100mg, 250mg.