


1-((2-(4-Methyl-1-piperazinyl)ethyl)thio)-4-(2-naphthyl)phthalazine
![Benzo[g]phthalazine, 1,2,3,4-tetrahydro-](/structure/61866-13-5.png)
![1,2,4-Triazolo[3,4-a]phthalazine, 3-(4-methoxyphenyl)-](/structure/94445-80-4.png)

10,10-dimethyl-1,4,4a,5,8,8a-hexahydro-1,4:5,8-dimethanophthalazine
![Phthalazino[2,3-b]phthalazine-2-sulfonyl chloride,5,7,12,14-tetrahydro-7,12-dioxo-](/structure/94145-13-8.png)
Phthalazino[2,3-b]phthalazine-2-sulfonyl chloride,5,7,12,14-tetrahydro-7,12-dioxo-


6-Phthalazinecarbonitrile, 1-bromo-3,4-dihydro-3-(1-methylethyl)-4-oxo-
![Phthalazine,1-(4-benzo[b]thien-2-yl-1,2,3,4-tetrahydro-2-methyl-7-isoquinolinyl)-](/structure/877247-13-7.png)
Phthalazine,1-(4-benzo[b]thien-2-yl-1,2,3,4-tetrahydro-2-methyl-7-isoquinolinyl)-

Phthalazine, 1-(4-ethoxyphenyl)-4-(1-methyl-1H-imidazol-2-yl)-,monohydrochloride
![1,4-Phthalazinedione, 2-[(1R,2R)-2-butylcyclopentyl]-2,3-dihydro-, rel-](/structure/884494-13-7.png)
1,4-Phthalazinedione, 2-[(1R,2R)-2-butylcyclopentyl]-2,3-dihydro-, rel-

![Phthalazine, 1-(1-methyl-1H-imidazol-2-yl)-4-[4-(methylthio)phenyl]-](/structure/863601-80-3.png)
Phthalazine, 1-(1-methyl-1H-imidazol-2-yl)-4-[4-(methylthio)phenyl]-


4-OXO-3-PHENYL-1-PHTHALAZINECARBOXYLIC ACID 2-(DIETHYLAMINO)ETHYL ESTER HCL
![8-CHLORO-3-(ISOPROPYL)-6-PHENYL-1,2,4-TRIAZOLO[3,4-A]PHTHALAZINE](/structure/87540-80-5.png)
8-CHLORO-3-(ISOPROPYL)-6-PHENYL-1,2,4-TRIAZOLO[3,4-A]PHTHALAZINE
![3-(2-PIPERIDIN-1-YLETHYL)-3,4,7,12-TETRAHYDRO-1H-(1,2,5)TRIAZEPINO[1,2-B]PHTHALAZINE-1,5(2H)-DIONE](/structure/81215-80-7.png)
3-(2-PIPERIDIN-1-YLETHYL)-3,4,7,12-TETRAHYDRO-1H-(1,2,5)TRIAZEPINO[1,2-B]PHTHALAZINE-1,5(2H)-DIONE
![3-hydroxy-2,3-dihydro-1h-pyrazolo[1,2-b]phthalazine-5,10-dione](/structure/7755-80-8.png)
3-hydroxy-2,3-dihydro-1h-pyrazolo[1,2-b]phthalazine-5,10-dione


1,6-Phthalazinedicarboxylic acid,3-(2-fluorophenyl)-3,4-dihydro-7-methyl-4-oxo-, diethyl ester
![6-[(2-methoxyethoxy)methyl]-3-(4-methoxyphenyl)[1,2,4]triazolo[3,4-a]phthalazine](/structure/98124-13-1.png)
6-[(2-methoxyethoxy)methyl]-3-(4-methoxyphenyl)[1,2,4]triazolo[3,4-a]phthalazine
![1,4-Phthalazinedione, 2,3-dihydro-,bis[[(4-chlorophenyl)[(4-chlorophenyl)azo]methylene]hydrazone]](/structure/139081-13-3.png)
1,4-Phthalazinedione, 2,3-dihydro-,bis[[(4-chlorophenyl)[(4-chlorophenyl)azo]methylene]hydrazone]
![Phthalazine,1-(4-benzo[b]thien-5-yl-1,2,3,4-tetrahydro-2-methyl-7-isoquinolinyl)-](/structure/877249-13-3.png)
Phthalazine,1-(4-benzo[b]thien-5-yl-1,2,3,4-tetrahydro-2-methyl-7-isoquinolinyl)-
![Phthalazine, 1-(2-furanyl)-4-[(4-methylphenyl)sulfonyl]-](/structure/863602-13-5.png)