5-Butyryl-7-methyl-5H-1,3-dioxolo(4,5-f)indole-7-acetic acid 50332-10-0 5H-1,3-Dioxolo(4,5-f)indole-7-acetic acid, 5-butyryl-7-methyl- 5H-1,3-Dioxolo(4,5-f)indole-7-acetic acid, 6-methyl-5-(1-oxobutyl)- BRN 1023173