Lambertianin C

Lambertianin C is an ellagitannin.

Natural occurrence
Lambertianin C can be found in Rubus species such as Rubus lambertianus, in cloudberries (Rubus chamaemorus) and in red raspberries (Rubus idaeus).

Chemistry
Lambertianin C is trimer of casuarictin linked by sanguisorbic acid ester groups between glucopyranose moieties. It contributes to the in vitro antioxidant activity of raspberries.