116409-13-3 6H-1,3-Dioxolo(4,5-g)(1)benzopyran, 7,8-dihydro-6-methoxy-6,7-dimethyl-8-(2,3,4-trimethoxyphenyl)- 7,8-Dihydro-6-methoxy-6,7-dimethyl-8-(2,3,4-trimethoxyphenyl)-6H-1,3-dioxolo(4,5-g)(1)benzopyran