Pyridine series

Pyridazine, 3-methyl-, 2-oxide

Pyrido[2,3-d]pyridazine-5,8-di

3(2H)-Pyridazinone, 5-amino-4-

3-Pyridazinamine, 6-chloro-4-m

Ethanone, 1-(3-pyridazinyl)-

3-Pyridazinecarboxaldehyde

4-Pyridazinecarboxylic acid, e

3(2H)-Pyridazinone, 6-methoxy-

Cinnoline, 4-methoxy-

1-Phthalazinamine

Ethanone, 1-(4-pyridazinyl)-

Cinnoline, 1-oxide