25823-53-4
3-chloro-6,7-dihydro-5H-benzo[2,3]cyclohepta[2,4-d]pyridazine
→
~97%
802598-74-9
3-Hydrazino-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazine