niraparib and its Impurities
Niraparib is used to treat ovarian cancer, fallopian tube cancer, or a type of cancer of the abdomen. It is an orally active PARP inhibitor. Reference standards of Niraparib API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Di-tert-Butyl 3,3'-((((hydrazine-1,2-diylbis(3-carbamoyl-2,1-phenylene))bis(methylene))bis(azanediyl))bis(4,1-phenylene))(3S,3'S)-bis(piperidine-1-carboxylate)
Di-tert-Butyl 3,3'-((((hydrazine-1,2-diylbis(3-carbamoyl-2,1-phenylene))bis(methylene))bis(azanediyl))bis(4,1-phenylene))(3S,3'S)-bis(piperidine-1-carboxylate)
Catalogue No.:PA 14 0861020
CAS :
NA
Molecular Formula : C48H62N8O6
Molecular Weight : 847.07


Di-tert-butyl 3,3'-((((diazene-1,2-diylbis(3-carbamoyl-2,1-phenylene))bis(methylene))bis(azanediyl))bis(4,1-phenylene))(3S,3'S)-bis(piperidine-1-carboxylate)
Di-tert-butyl 3,3'-((((diazene-1,2-diylbis(3-carbamoyl-2,1-phenylene))bis(methylene))bis(azanediyl))bis(4,1-phenylene))(3S,3'S)-bis(piperidine-1-carboxylate)
Catalogue No.:PA 14 0861021
CAS :
NA
Molecular Formula : C48H60N8O6
Molecular Weight : 845.06


Tert-butyl (S)-3-(4-((3-(methoxycarbonyl)-2-nitrobenzylidene)amino)phenyl)piperidine-1-carboxylate
Tert-butyl (S)-3-(4-((3-(methoxycarbonyl)-2-nitrobenzylidene)amino)phenyl)piperidine-1-carboxylate
Catalogue No.:PA 14 0861030
CAS :
1312106-32-3
Molecular Formula : C25H29N3O6
Molecular Weight : 467.52


tert-Butyl (S)-3-(4-((3-(methoxycarbonyl)-2-nitrobenzyl)(nitroso)amino)phenyl)piperidine-1-carboxylate
tert-Butyl (S)-3-(4-((3-(methoxycarbonyl)-2-nitrobenzyl)(nitroso)amino)phenyl)piperidine-1-carboxylate
Catalogue No.:PA 14 0861035
CAS :
NA
Molecular Formula : C25H30N4O7
Molecular Weight : 498.54