Sell: Rhmannioside a/rehmannioside a/[(1as,1b娄脕,5a娄脕,6a娄脗)-1a,1b,2,5a,6,6a-hexahydro-6娄脕-hydroxy-1a娄脗-(hydroxymethyl)oxireno[4,5]cyclopenta[1,2-c]pyran-2娄脕-yl]6-o-娄脕-d-galactopyranosyl-娄脗-d-