15770-21-5 5-24-03-00245 (Beilstein Handbook Reference) BRN 0005216 Di-1H-pyrrol-2-yl ketone Dipyrrol-2-yl ketone Ketone, di-1H-2-pyrrolyl Methanone, di-1H-pyrrol-2-yl- (9CI) NSC 81355 PYRROL-2-YL KETONE