哒嗪是具有分子式(CH)4N2的杂环有机化合物。它含有一个具有两个相邻氮原子的六元环，并且是芳香的。它是一种无色液体，沸点为208°C，它与其他两个（CH）4N2环、嘧啶和吡嗪是同分异构体。
3-Iodo-6-methylpyridazine
3,6-Diiodopyridazine
6-Iodopyridazin-3-amine
3-Chloro-6-iodopyridazine
3-Iodo-6-isopropoxypyridazine
1,2-Dihydro-4-methyl-3,6-pyridazinedione
Ethyl 6-chloro-3-hydroxypyridazine-4-carboxylate
6-Chloro-3-hydroxypyridazine-4-carboxylic acid
4,5-Dimethylpyridazine-3,6-diol
4-Methylpyridazine
4-Methylpyridazine-3-carbonitrile
6-Fluoropyridazin-3-amine
5-(Trifluoromethyl)pyridazin-3-amine
6-Ethoxypyridazin-3-amine
6-Propoxypyridazin-3-amine
6-Aminopyridazine-3-sulfonamide
4-Amino-6-chloropyridazin-3(2H)-one
4,5-Diaminopyridazin-3(2H)-one
4-Amino-5-chloropyridazin-3(2H)-one
4-Aminopyridazin-3(2H)-one
6-Chloropyridazine-3-carboxylic acid
3-Chloro-6-isopropylpyridazine
6-Chloro-N-propylpyridazin-3-amine
6-Chloropyridazine-3-carbonitrile
3-Chloro-6-(trifluoromethyl)pyridazine
6-Chloropyridazine-4-carboxylic acid
3-Chloropyridazine-4-carbonitrile
Methyl 6-chloropyridazine-4-carboxylate
Ethyl 6-chloro-3-pyridazinecarboxylate
