Niraparib Impurity 21 CAS 1263284-59-8
| CAS No. | 1263284-59-8 |
| Molecular Formula | C16H24N2O2 |
| Molecular Weight | 276.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H24N2O2, Niraparib Impurity 21 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Niraparib Impurity 21 (CAS 1263284-59-8) is a certified pharmaceutical impurity reference standard with the molecular formula C16H24N2O2 and a molecular weight of 276.37 g/mol.
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.
CATO manufactures Niraparib Impurity 21 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H24N2O2 |
| Molecular Weight | 276.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Niraparib Standards
- Niraparib Impurity 3 (CAS 1171197-20-8)
- Niraparib Impurity 35 (CAS 1524736-92-2)
- Niraparib Impurity 61 (CAS 3112957-16-8)
- Niraparib Impurity 64 (CAS 2820493-80-7)
- Niraparib Impurity 65 (CAS CATO-C4X-232965)
- Niraparib Impurity 60 (CAS CATO-C4X-232960)
- Niraparib Impurity 49 (CAS 1267209-15-3)
- Niraparib Impurity 48 (CAS 1823263-50-8)
Recommended Standards
- Cyclandelate (CAS 456-59-7)
- Brivaracetam Impurity 151 (CAS CATO-C4X-2007151)
- 7,9-Di-tert-butyl-1-oxaspiro[4.5]deca-6,9-diene-2,8-dione (CAS 82304-66-3)
- N-(4-(methoxymethyl)piperidin-4-yl)-N-phenylpropionamide (CAS 61086-18-8)
- Naltrexone Impurity 62 (CAS CATO-C4X-147562)
- Fluorescein Impurity 6 (CAS 2321-08-6)
- Dotinurad Impurity 229 (CAS CATO-C4X-2494229)
- (2-Oxopiperidin-1-yl)acetyl chloride (CAS 1706431-22-2)
- 5-Bromo-2,4-dimethylaniline (CAS 69383-60-4)
- 2-Bromo-4-(bromomethyl)-5-(difluoromethyl)-3-iodopyridine (CAS 1805166-71-5)
- 1-(4-chlorobenzyl)-1H-pyrazol-4-amine,HCl (CAS 1197239-02-3)
- 2-(4-Fluorophenyl)-2H-1,2,3-triazole-4-carbaldehyde (CAS 712-73-2)
- 2-(2,5-Dihydroxybenzylidene)-1H-indene-1,3(2H)-dione (CAS 1023509-67-2)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com