酞嗪又称苯并-正二嗪或苯并哒嗪，是一种分子式为C8H6N2的杂环有机化合物。它与其他萘啶类异构体，包括喹喔啉、辛可林和喹唑啉等。
1,4-Dichloro-6,7-difluorophthalazine
N-(3-Chlorophenyl)-4-phenylphthalazin-1-amine
Phthalazine-1-thiol
1,4-Bis((R)-((1S,2S,4S,5R)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)phthalazine
2-(3-Methyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid
Ethyl 2-(1-oxophthalazin-2(1H)-yl)acetate
2-Fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid
2-(3-(4-Bromo-2-fluorobenzyl)-4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid
4-(1H-Imidazol-2-yl)phthalazin-1(2H)-one
Phthalazin-1(2H)-one
7-Bromophthalazin-1(2H)-one
5-Fluorophthalazin-1(2H)-one
N-(3-Chlorophenyl)-2-(4-(4-chlorophenyl)-1-oxophthalazin-2(1H)-yl)acetamide
N-(3-Chlorophenyl)-3-(1-oxo-4-phenylphthalazin-2(1H)-yl)propanamide
2-((7-Bromo-4-oxo-3,4-dihydrophthalazin-1-yl)methyl)isoindoline-1,3-dione
2-(3-Butyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid
N-(2-Aminoethyl)-3-(4-hydroxyphthalazin-1-yl)propanamide
Methyl 1,4-dioxo-1,2,3,4-tetrahydrophthalazine-5-carboxylate
4-Chlorophthalazin-1-amine
2-(3-(2-Methoxyethyl)-4-oxo-3,4-dihydrophthalazin-1-yl)acetic acid
6,7-Dimethoxyphthalazin-1(2H)-one
2-(2-Aminoethyl)phthalazin-1(2H)-one hydrochloride
4-(2,5-Dimethylphenyl)phthalazin-1(2H)-one
1-Chloro-4-(4-fluorophenyl)phthalazine
tert-Butyl 4-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)piperazine-1-carboxylate
