Niraparib Impurity 51 CAS CATO-C4X-232951
| CAS No. | CATO-C4X-232951 |
| Molecular Formula | C23H26N4O2 |
| Molecular Weight | 390.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Niraparib Impurity 51 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Niraparib Impurity 51 (CAS CATO-C4X-232951) is a certified pharmaceutical impurity reference standard with the molecular formula C23H26N4O2 and a molecular weight of 390.48 g/mol.
Based on its molecular formula C23H26N4O2, Niraparib Impurity 51 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 390.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C23H26N4O2 |
| Molecular Weight | 390.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Niraparib Standards
- Niraparib Impurity 47 (CAS CATO-C4X-232947)
- Niraparib Impurity 50 (CAS CATO-C4X-232950)
- Niraparib Impurity 13 (CAS 2381228-27-7)
- Niraparib Impurity 20 (CAS CATO-C4X-232920)
- Niraparib Impurity 45 (CAS 1476776-97-2)
- Niraparib Impurity 41 (CAS CATO-C4X-232941)
- Niraparib Impurity 19 (CAS CATO-C4X-232919)
- Niraparib Impurity N19 (CAS 1038916-08-3)
Recommended Standards
- Ruxolitinib Impurity 239 (CAS CATO-C4X-2058239)
- H-Pro-Phe-Lys-OH (CAS 40204-88-4)
- Allopurinol impurity 28 (CAS CATO-C4X-145828)
- (2-hydroxy-2-oxo-1,2λ-oxaphospholan-5-yl)methyl hexadecanoate (CAS 476310-22-2)
- Relugolix Impurity 15 (CAS CATO-C4X-242915)
- Atracurium impurity 99 (CAS 155913-37-4)
- Estriol impurity 25 (CAS 55105-93-6)
- trans-1-Boc-pyrrolidine-3,4-dicarboxylic Acid (CAS 865451-68-9)
- 2-Methyl-4-azaindole (CAS 73177-35-2)
- 4-(Pentyloxy)phenylboronic Acid (CAS 146449-90-3)
- 2,2-Difluoroethyl 2,2,2-trifluoroacetate (CAS 7556-84-5)
- Pitolisant Impurity 45 (CAS CATO-C4X-252045)
- 4-(cyclopropylamino)pyridine-2-carboxylic acid (CAS 883987-30-2)
- Custom peptides (CAS CATO-CPTD788509)
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