
1(6H)-Pyridazinepropanesulfonic acid, 6-oxo-3-(3-sulfopropoxy)-,disodium salt

1(6H)-Pyridazinepropanesulfonic acid, 6-oxo-3-(3-sulfopropoxy)-,disodium salt
![1(6H)-Pyridazinepropanoic acid,3-[(ethoxyphenylphosphinothioyl)oxy]-6-oxo-, methyl ester](/structure/62576-25-4.png)
1(6H)-Pyridazinepropanoic acid,3-[(ethoxyphenylphosphinothioyl)oxy]-6-oxo-, methyl ester
![[1]Benzothieno[2,3-d]pyridazine](/structure/244-92-8.png)

3-Pyridazinecarboxylic acid,5-cyano-1,2,3,6-tetrahydro-4-methyl-6-oxo-1-phenyl-, ethyl ester

![THIENO[3,2-C]PYRIDAZINE](/structure/22390-25-6.png)


1(6H)-Pyridazinecarboxylic acid, 6-oxo-3-phenyl-, 2-phenylhydrazide

![5-METHOXYPYRIDO[2,3-D]PYRIDAZINE](/structure/56525-92-9.png)
![1H-Pyrazolo[3,4-c]pyridazine, 3-(2-methoxyphenyl)-5-(4-methylphenyl)-](/structure/832712-25-1.png)
1H-Pyrazolo[3,4-c]pyridazine, 3-(2-methoxyphenyl)-5-(4-methylphenyl)-
![Benzenesulfonic acid, 2,4,6-trimethyl-, compd. with7-[(4-fluorophenyl)methoxy]-2,3-dimethyl-1-[[(1S,2S)-2-methylcyclopropyl]methyl]-1H-pyrrolo[2,3-d]pyridazine (1:1)](/structure/872596-25-3.png)
![1,2,4-Triazolo[4,3-b]pyridazine, 6-phenyl-](/structure/55054-92-7.png)


1(6H)-Pyridazinepropanoic acid, 6-oxo-3,5-diphenyl-, ethyl ester

1(6H)-Pyridazinepentanoic acid, 6-imino-5-methyl-3-phenyl-, ethylester, monohydrobromide
![4-Pyridazinecarboxylic acid,2-[(2-chlorophenyl)methyl]-6-(4-fluoro-3-methylphenyl)-2,3-dihydro-3-oxo-](/structure/639822-25-6.png)

![Pyrrolo[1,2-b]pyridazine-3-carbonitrile,4-(4-amino-2-fluorophenoxy)-6-methoxy-5-methyl-](/structure/888720-25-0.png)
Pyrrolo[1,2-b]pyridazine-3-carbonitrile,4-(4-amino-2-fluorophenoxy)-6-methoxy-5-methyl-

![Pyrrolo[1,2-b]pyridazine-5,6-dicarboxylic acid,2-(4-morpholinyl)-4-phenyl-7-[4-(trifluoromethoxy)phenyl]-, diethyl ester](/structure/844875-25-8.png)
![Pyrazino[2,3-c]pyridazine, 6,7-diphenyl-](/structure/345293-92-7.png)
![Thieno[3,2-c]pyridazine-1,2-dicarboxylic acid, bis(1,1-dimethylethyl)ester](/structure/74057-25-3.png)
Thieno[3,2-c]pyridazine-1,2-dicarboxylic acid, bis(1,1-dimethylethyl)ester
![Pyrido[3,4-d]pyridazine-1-carboxylic acid,3,4,5,6-tetrahydro-4,5-dioxo-3,7-diphenyl-, ethyl ester](/structure/145121-25-1.png)
Pyrido[3,4-d]pyridazine-1-carboxylic acid,3,4,5,6-tetrahydro-4,5-dioxo-3,7-diphenyl-, ethyl ester
![Pyrido[2,3-c]pyridazine-6-carboxylic acid,7,8-dihydro-5-hydroxy-8-(1-methylethyl)-, ethyl ester](/structure/128992-25-6.png)
Pyrido[2,3-c]pyridazine-6-carboxylic acid,7,8-dihydro-5-hydroxy-8-(1-methylethyl)-, ethyl ester
![3-chloro-4,5-bis[(4-chlorobenzyl)sulfanyl]pyridazine](/structure/5589-92-4.png)
![6H-Pyrano[3,4-c]pyridazine-4-carbonitrile,3-amino-2,8-dihydro-6,6-dimethyl-2-[4-(trifluoromethyl)phenyl]-](/structure/507235-92-9.png)

![Imidazo[1,2-b]pyridazine,2,3-dihydro-2-methyl-6-[(trifluoromethyl)phenyl]-](/structure/102627-25-8.png)
Imidazo[1,2-b]pyridazine,2,3-dihydro-2-methyl-6-[(trifluoromethyl)phenyl]-

![2-(4-methylphenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,2-a]pyridazine-1,3-dithione](/structure/58744-92-6.png)
2-(4-methylphenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,2-a]pyridazine-1,3-dithione
![Pyrrolo[1,2-b]pyridazine-3-carboxylic acid,4-(5-bromo-3-pyridinyl)-2-[(cyclohexyloxy)methyl]-7-ethyl-](/structure/873326-92-2.png)

![Thieno[3,4-d]pyridazine-1-carboxylic acid,3,4-dihydro-4-oxo-5-[(1-oxo-3-phenyl-2-propenyl)amino]-3-phenyl-, ethylester](/structure/481704-92-1.png)

Pyridazine, hexahydro-1-(4-nitro-1-naphthalenyl)-2-(2-phenylethyl)-
![Pyridazine,1-(4-cyano-1-naphthalenyl)-2-[(2,6-difluorophenyl)acetyl]hexahydro-](/structure/908273-25-6.png)
Pyridazine,1-(4-cyano-1-naphthalenyl)-2-[(2,6-difluorophenyl)acetyl]hexahydro-