Synonyms: 3,6-Pyridazinediol; Maleic acid hydrazide; Maleic hydrazide,(3,6-Dihydroxypyridazine; 3,6-Pyridazinediol); 1,2-dihydropyridazine-3,6-dione; Maleic Hydrazine; 1,2-Dihydropyridazin-3,6-dion; Maleic hydrazide; cis-Butenedioic acid hydrazide; 1,2-Dihydro-3,6-pyridazinedione