7,7',10,10'-tetrakis(1,1-dimethylprop-2-en-1-yl)-5,5'-dimethoxy-2,2,2',2'-tetramethyl-2H,2'H,8H,8'H-3,3'-bipyrano[3,2-g]chromene-8,8'-dione InChI=1/C50H58O8/c1-19-45(5,6)33-25-27-37(53-17)29-23-31(49(13,14)57-41(29)35(47(9,10)21-3)39(27)55-43(33)51)32-24-30-38(54-18)28-26-34(46(7,8)20-2)44(52)56-40(28)36(48(11,12)22-4)42(30)58-50(32,15)16/h19-26H,1-4H2,5-18H card-20(22)-enolide, 3-[(2,6-dideoxy-4-O-beta-D-glucopyranosyl-beta-D-ribo-hexopyranosyl)oxy]-5,11,14-trihydroxy-, (3beta,5beta,11alpha)-