79503-62-1 D-threo-D-gluco-Octitol, 2,6:4,7-dianhydro-1,8-dideoxy-2-C-((1E,3E,5E)-6-(4-methoxy-5-methyl-2-oxo-2H-pyran-6-yl)-1,3,5-hexatrienyl)-4,6-di-C-methyl-