5-(4-Bromobenzoyl)-6,7,8,9-tetrahydro-5H-1,3-dioxolo(4,5-b)carbazole 50332-23-5 5H-1,3-DIOXOLO(4,5-b)CARBAZOLE, 6,7,8,9-TETRAHYDRO-5-(p-BROMOBENZOYL)- BRN 1037044