3-Chloro-5H-indeno(1,2-c)pyridazine 3-Cloro-5H-indeno(1,2-c)piridazina [Italian] 5-23-08-00210 (Beilstein Handbook Reference) 5H-Indeno(1,2-c)pyridazine, 3-chloro- 69581-17-5 BRN 0780083