25947-18-6

Venadaparib Impurity 12 2-(4-oxo-3H-phthalazin-1-yl)acetohydrazide 2-(4-oxo-3H-phthalazin-1-yl)ethanehydrazide 2-(4-keto-3H-phthalazin-1-yl)acetohydrazide 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetohydrazide 1-phthalazineacetic acid, 3,4-dihydro-4-oxo-, hydrazide