3-氯-6-甲基磺酰基吡嗪

6-chloro-N-(4-chlorophenyl)pyridazin-3-amine

3-chloro-6-(2-methylimidazol-1-yl)pyridazine

N-(3-氯吡嗪-6-基)-n-甲基肼

3-chloro-6-(2-fluorophenyl)pyridazine