Niraparib impurities and related standards
13 reference standards related to Niraparib held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
CAS numbers are listed for 13 of 13; 9 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Niraparib Impurity 20 | 1196713-21-9 | RS-N014002 | C11H16N2 | 176.26 |
| Niraparib Impurity 34 | 1203683-54-8 | RS-N014003 | C16H22BrNO2 | 340.26 |
| Niraparib Impurity 33 | 1203686-41-2 | RS-N014004 | C16H22BrNO2 | 340.26 |
| Niraparib Impurity 14 | 1289162-62-4 | RS-N014005 | C8H6N2O4 | 194.14 |
| Niraparib Impurity 15 | 1289174-44-2 | RS-N014006 | C8H5NO5 | 195.13 |
| Niraparib Impurity 22 | 1334823-70-9 | RS-N014007 | C11H16N2 | 176.26 |
| Niraparib Impurity 44 | 1335523-82-4 | RS-N014008 | C11H14BrN | 240.14 |
| Niraparib Impurity 13 | 1369926-38-4 | RS-N014009 | C8H4N2O4 | 192.13 |
| Niraparib Impurity 36 | 1476776-92-7 | RS-N014010 | C28H36N4O3 | 476.61 |
| Niraparib Impurity 39 | 2409590-07-2 | RS-N014013 | C11H14BrN·HCl | 276.6 |
| Niraparib Impurity 54 | 1038916-11-8 | RS-N014001 | C24H28N4O3 | 420.5 |
| Niraparib Impurity 53 | 1476776-96-1 | RS-N014011 | C25H28N2O3 | 404.5 |
| Niraparib Impurity 2 | 1476777-06-6 | RS-N014012 | C19H19N3O2 | 321.37 |
Structures
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Niraparib Impurity 20
COA per lot -
Niraparib Impurity 34
COA per lot -
Niraparib Impurity 33
COA per lot -
Niraparib Impurity 14
COA per lot -
Niraparib Impurity 15
COA per lot -
Niraparib Impurity 22
COA per lot -
Niraparib Impurity 44
COA per lot -
Niraparib Impurity 13
COA per lot
Frequently asked
How many Niraparib-related reference standards do you hold?
13 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 13 of them and 9 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Niraparib impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Niraparib impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Niraparib impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.
Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to [email protected].







