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Chemical structure of anthocyanins from Sambucus nigra fruits: (a) cyanidin 3-glucoside; (b) cyanidin 3-rutinoside; (c) cyanidin 3-sambubioside-5-glucoside; (d) cyanidin 3-sambubioside; (e) cyanidin 3,5-diglucoside; (f) delphinidin 3-rutinoside; (g) pelargonidin 3-glucoside; and (h) pelargonidin 3-sambubioside.
