beta-D-Galactopyranoside, 3',4',5',6'-tetrahydro-3',5,7-trihydroxy-6'-(hydroxymethyl)-4'-((7-hydroxy-8,14-dimethyl-1-oxo-2,4,8,10-hexadecatetraenyl)oxy)spiro(isobenzofuran-1(3H),2'-(2H)pyran)-5-yl, 6-(2,4,6-octatrienoate)