2H-Furo(2,3-h)-1-benzopyran-2-one, 4,8-dimethyl-7-((2-(dimethylamino)ethoxy)methyl)- 4,5'-Dimethyl-4'-dimethylaminoethoxymethylangelicin 4,8-Dimethyl-7-((2-(dimethylamino)ethoxy)methyl)-2H-furo(2,3-h)-1-benzopyran-2-one 78560-66-4