CAS 131559-54-1 appears in our catalog under these names: Triumbelletin, 7,7'-Dihydroxy-3-[(2-oxo-2H-1-benzopyran-7-yl)oxy][8,8'-bi-2H-1-benzopyran]-2,2'-dione, Triumbelletin/ 98%, Triumbelletin, 98.0%. Offered by: GLPBio, Chemat, TargetMol, Biosynth, MedChemExpress. Available pack sizes: 1mg, 500μg, 10mg, 5mg, 25mg, 50mg, 500 μg, 1 mg.