Regadenoson Impurity N9 CAS 313348-31-1
| CAS No. | 313348-31-1 |
| Molecular Formula | C16H20N8O5 |
| Molecular Weight | 404.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Regadenoson Impurity N9 (C16H20N8O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Regadenoson Impurity N9 (CAS 313348-31-1) is a certified pharmaceutical impurity reference standard with the molecular formula C16H20N8O5 and a molecular weight of 404.38 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H20N8O5 |
| Molecular Weight | 404.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 8 |
Related Regadenoson Standards
- Regadenoson Impurity 20 (CAS 313348-33-3)
- Regadenoson Impurity 2 (CAS CATO-C4X-19852)
- Regadenoson Impurity 30 (CAS 765299-55-6)
- Regadenoson Impurity 7 (CAS CATO-C4X-19857)
- Regadenoson Impurity 6 (CAS 313348-16-2)
- Regadenoson Impurity 57 (CAS 52921-40-1)
- Regadenoson Impurity 3 (CAS 1423073-21-5)
- Regadenoson Impurity 14 (CAS 2015222-31-6)
Recommended Standards
- 2-(2,4-Bis(hexyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1391734-70-5)
- 3-Bromo-5-((1S,3S,4S)-4-((tert-butyldimethylsilyl)oxy)-3-fluorocyclohexyl)pyrazin-2-amine (CAS 1715032-86-2)
- (2e)-3-[4-({4-[(carboxymethyl)carbamoyl]phenyl}sulfamoyl)phenyl]prop-2-enoic acid (CAS 851207-45-9)
- N-Nitroso Nafamostat impurity 118 (CAS CATO-C4X-1332118)
- Biotin iimpurity 26 (CAS CATO-C4X-156326)
- Estriol EP Impurity H (CAS 566-76-7)
- S-Cefadroxil Sulfoxide (CAS CATO-C4X-122416)
- 1,2-Dibromo-4-difluoromethoxy-5-(trifluoromethylthio)benzene (CAS 1804937-85-6)
- 2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetonitrile (CAS 2489206-14-4)
- Tert-butyl 2-(4-methoxybenzoyl)hydrazine-1-carboxylate (CAS 331636-75-0)
- (1-(3-Fluorobenzyl)-1h-1,2,3-triazol-4-yl)methanamine (CAS 1249794-30-6)
- 7-Bromo-6-(chloromethyl)-1H-benzo[d]imidazole (CAS 1803894-71-4)
- N-tert-Butyl-3-nitropyridin-2-amine (CAS 79371-45-2)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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