CAS NO.1038915-60-4Product Name MK-4827SynonymsNiraparibFormulaC19H20N4OMolecular Weight320.39Spec / Purity98%minSupply Capacity Details MK-4827(Niraparib) is a selective inhibitor of PARP1/PARP2 with IC50 of 3.8 nM/2.1 nM; with great activity in cancer cells with mutant BRCA-1 and BRCA-2; >330-fold selective against PARP3, V-PARP and Tank1.