1,2-Dioxeto(3,4-b)benzofuran, 2a,7b-dihydro-7b-methoxy-2a-methyl- 128753-82-2 2a,7b-Dihydro-7b-methoxy-2a-methyl-1,2-dioxeto (3,4-b)benzofuran 2a,7b-Dihydro-7b-methoxy-2a-methyl-1,2-dioxeto(3,4-b)benzofuran CCRIS 4151