1,4-Dihydrazinonaphthalazine 1,4-Dihydrazinophthalazine 1,4-Phthalazinedione, 2,3-dihydro-, dihydrazone (9CI) 2,3-Dihydro-1,4-phthalazinedione dihydrazone 484-23-1 5-25-17-00465 (Beilstein Handbook Reference) BRN 0183442 C 7441 CCRIS 7576 Cassella 532 DIHYDRALAZINE Dihidralazina [INN-Spanish] Dihydralazin Dihydralazinum [INN-Latin] Dihydrallazin Dihydrallazine Dihydrazinophthalazine EINECS 207-605-0 Hypopresol NSC 526654 Nepresol Nepresolin Nepressol Ophthazin Phthalazine, 1,4-dihydrazino- Tonolysin