CAS 21453-69-0 appears in our catalog under these names: (+)-Syringaresinol, (+)–Syringaresinol , (+)-Syringaresinol 99%, 4,4'-((1S,3aR,4S,6aR)-Tetrahydro-1H,3H-furo[3,4-c]furan-1,4-diyl)bis(2,6-dimethoxyphenol), 99%, 99%, (+)-Syringaresinol, 98.69%. Offered by: TRC, GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 5 mg, 1 mg.