preferred_name: 3 beta-hydroxy-22alpha-methoxy-26-O-beta-D-glucopyranosyloxy-5alpha-furostan-2-one-3-O-(O-alpha-L-rhamnopyranosyl-(1-2)-O-(O-alpha-L-arabinopyranosyl-(1-2)-O-(beta-D-xylopyranosyl-(1-3))-beta-D-glucopyranosyl-(1-4))-beta-D-galactopyranoside)