1,3-Dioxolo(4,5-g)quinoline-7-carbonitrile, 5,8-dihydro-5-ethyl-8-oxo- 5-Ethyl-8-oxo-5,8-dihydro-1,3-dioxolo(4,5-g)quinoline-7-carbonitrile 57147-33-8 BRN 5344816