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3-Pyridazinamine 6-chloro- 2-oxide

Phthalazine 1-methoxy-

4-Cinnolinecarbonitrile

3(2H)-pyridazinone 6-chloro-4-methyl-

Pyridazine 4-phenyl-

3(2H)-pyridazinone 6-hydroxy-4-phenyl-

Pyridazine 3-iodo-6-methyl-

Cinnoline 1-oxide

Cinnoline 4-methoxy-

3(2H)-pyridazinone 6-methoxy-

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