(3b,8ξ,9ξ,10a,13a,14ξ,16ξ,17ξ,25R)-Spirost-5-en-3-yl a-L-arabinopyranosyl-(1->4)-[6-deoxy-a-L-mannopyranosyl-(1->2)]-b-D-glucopyranoside

Polyphyllin I(Chonglou Saponin I)