1,2-Benzenedicarboxylic acid, 3-amino-, cyclic hydrazide 1,4-Phthalazinedione, 5-amino-2,3-dihydro- 3-Aminophthalhydrazide 3-Aminophthalic acid hydrazide 3-Aminophthalic hydrazide 3-Aminophthalylhydrazide 5-Amino-1,2,3,4-tetrahydrophthalazine-1,4-dione 5-Amino-2,3-dihydro-1,4-phthalazinedione 521-31-3 AI3-52555 CCRIS 5962 EINECS 208-309-4 LUMINOL NSC 5064