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Chemical structures and molecular weight of saponins identified in different parts of P. notoginseng. Glc, β-D-glucopyranosyl; Rha, α-L-rhamnopyranosyl; Arap, α-L-arabinopyranosyl; Araf, α-L-arabinofuranosyl; Xyl, β-D-xylopyranosyl; Glc*, α-D-glucopyranosyl; M.W., molecular weight.
