1-(6-Methyl-8-(3,4,5-trimethoxyphenyl)-8H-1,3-dioxolo(4,5-g)(1)benzopyran-7-yl)ethanone 117233-19-9 Ethanone, 1-(6-methyl-8-(3,4,5-trimethoxyphenyl)-8H-1,3-dioxolo(4,5-g)(1)benzopyran-7-yl)-