Synonyms: Pyrimido(4,5-e)-as-triazine-6(5H),8(7H)-dione, 3-isonicotinoylhydrazino-, dihydrate;Isonicotinic acid, 2-(6,8-dioxo-5,6,7,8-tetrahydropyrimido(4,5-e)-as-triazin-3-yl)hydrazide, dihydrate;AC1L1HE0;LS-84907;N'-(6,8-dioxopyrimido[4,5-e][1,2,4]triazin-2-yl)pyridine-4-carbohydrazide dihydrate;80761-64-4