p. 837 - 844
(1998)2-((1H-indol-3-yl)methylene)-1-(phthalazin-4-yl)hydrazine
6-chloro-1,1-dioxo-3-(2-phthalazin-1-ylhydrazono-propyl)-1,2,3,4-tetrahydro-1λ6-benzo[1,2,4]thiadiazine-7-sulfonic acid amide
1,1'-diazane-1,2-diyl-bis-phthalazine
s-Triazolo(3,4-a)phthalazin-3H-3-on
hydralazine pyruvic acid hydrazone