Vibsanin C is a natural product of Viburnum, Caprifoliaceae. The catalog number is TN5231 and the CAS number is 74690-89-4. Vibsanin C can be used as a reference standard.

6'-O-caffeoylarbutin may serve as a skin-whitening ingredient with the merits of potent melanin inhibition,less toxicity and reversible melanin synthesis after stopping use.

4,4'-Dihydroxy-3,3',9-trimethoxy-9,9'-epoxylignan shows cytotoxic activities against four tumor cell lines (A549, SK-OV-3, SKMEL-2 and HCT15).

(+)-9'-O-trans-feruloyl-5,5'-dimethoxylariciresinol may have anti-allergic inflammatory effect, it can inhibit release of histamine from mast cells. It shows cytotoxicity against a small panel of human tumor cell lines, with ED50 values of 9.86 to approxi

27-trans-p-Coumaroyloxyursolic acid and 27-cis-p-coumaroyloxyursolic acid show potent inhibitory activity in the acyl CoA cholesteryl acyl transferase (ACAT) assay.