Polygalaxanthone XI is an xanthone glycoside isolated from the cortex of Polygala tenuifolia, which can be used in studies of expectorants and to promote psychostability.
Vicinin 2 is a natural product of Vicia, Fabaceae. The catalog number is TN6503 and the CAS number is 90456-53-4. Vicinin 2 can be used as a reference standard.