5-(p-Chlorobenzoyl)-5,6,7,8-tetrahydrocyclopenta(b)-1,3-dioxolo(4,5-f)indole 50332-13-3 BRN 1032883 Cyclopenta(b)-1,3-dioxolo(4,5-f)indole, 5,6,7,8-tetrahydro-5-(p-chlorobenzoyl)-