5-(p-Fluorobenzoyl)-5,6,7,8-tetrahydrocyclopenta(b)-1,3-dioxolo(4,5-f)indole 50332-12-2 BRN 1032881 Cyclopenta(b)-1,3-dioxolo(4,5-f)indole, 5,6,7,8-tetrahydro-5-(p-fluorobenzoyl)-