英文名称
5-(7-methyl-2,3-dihydrothieno[3,4-b][1,4]dioxin-4-ium-5-ylidene)-7-[7-[7-[5-(7-methyl-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-3,7a-dihydro-2H-thieno[3,4-b][1,4]dioxin-7-ylidene]-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-ylidene]-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-ylidene]-2,3-dihydrothieno[3,4-b][1,4]dioxine