CAS 29388-33-8 appears in our catalog under these names: Anhydrosecoisolariciresinol 99%, 4,4'-(((3R,4R)-Tetrahydrofuran-3,4-diyl)bis(methylene))bis(2-methoxyphenol), 99%, 99%, Anhydrosecoisolariciresinol, 99.94%. Offered by: Ambeed, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 10 mg, 5 mg, 1 mg.