Niraparib Impurity 7 CAS 1289162-62-4
| CAS No. | 1289162-62-4 |
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Niraparib Impurity 7 (CAS 1289162-62-4) is a certified pharmaceutical impurity reference standard with the molecular formula C8H6N2O4 and a molecular weight of 194.14 g/mol.
Structurally, Niraparib Impurity 7 (C8H6N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 194.14 g/mol, it falls into the medium-molecular-weight range. 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).
As a certified reference material (CRM), Niraparib Impurity 7 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.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Niraparib Standards
- Niraparib Impurity 8 (CAS 1289174-44-2)
- Niraparib Impurity 6 (CAS 1369926-38-4)
- Niraparib Impurity 56 (CAS 1090871-88-7)
- Niraparib Impurity 66 (CAS CATO-C4X-232966)
- Niraparib Impurity 9 (CAS CATO-C4X-23299)
- Niraparib Impurity 14 (CAS CATO-C4X-232914)
- Niraparib Impurity 12 (CAS CATO-C4X-232912)
- Niraparib Impurity 16 (CAS CATO-C4X-232916)
Recommended Standards
- (3R,4S,5R)-Ascorbic Acid EP Impurity C (CAS 21675-47-8)
- D-Glucuronic Acid (CAS 6556-12-3)
- Ascorbic Acid EP Impurity C (CAS 526-98-7)
- L-Guluronic Acid Sodium Salt (CAS 15769-56-9)
- Naproxen Impurity 26 (CAS 23981-80-8)
- Cholecalciferol EP Impurity B (CAS 434-16-2)
- Palbociclib Impurity 174 (CAS CATO-C4X-1125174)
- 4-(2,3-Difluoro-4-methylphenyl)-4'-propyl-1,1'-bi(cyclohexane) (CAS 174350-06-2)
- 5-(2-Hydroxypropan-2-yl)-2-methylphenol (CAS 4397-18-6)
- Leukotrieneb3 (CAS 88099-35-8)
- 8-Bromo-3,4-dihydro-1H-[1,4]oxazino[4,3-a]indole (CAS 1272970-88-3)
- 1468AF 4-(4-Methoxy-2,5-dimethyl-phenyl)-thiazol-2-ylamine 879053-77-7 C12H14N2OS (CAS 879053-77-7)
- 6-Bromo-5-(trifluoromethyl)picolinic acid (CAS 1211537-01-7)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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