9H-Carbazole, 2,7-bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)-

9H-Carbazole, 2,7-bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)- · CAS 2247347-75-5