2-(6-chloropyridazin-3-yl)-2-(2,4-dichlorophenyl)acetonitrile

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

哒嗪

N-(6-氯-3-哒嗪基)-beta-丙氨酸

3,6-二(二甲基氨基)哒嗪