Regadenoson Impurity 41 CAS CATO-C4X-198541
| CAS No. | CATO-C4X-198541 |
| Molecular Formula | C20H21N7O9 |
| Molecular Weight | 503.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Regadenoson Impurity 41 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.
As a process- or degradation-related impurity, Regadenoson Impurity 41 (CAS CATO-C4X-198541, C20H21N7O9) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Regadenoson Impurity 41 (C20H21N7O9) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H21N7O9 |
| Molecular Weight | 503.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Regadenoson Standards
- Regadenoson Impurity 42 (CAS CATO-C4X-198542)
- Regadenoson Impurity 48 (CAS CATO-C4X-198548)
- Regadenoson Impurity 47 (CAS CATO-C4X-198547)
- Regadenoson Impurity 55 (CAS CATO-C4X-198555)
- Regadenoson Impurity 58 (CAS CATO-C4X-198558)
- Regadenoson Impurity 53 (CAS CATO-C4X-198553)
- Regadenoson Impurity 56 (CAS CATO-C4X-198556)
- Regadenoson Impurity N1 (CAS 16321-99-6)
Recommended Standards
- 5-({[3,5-bis(trifluoromethyl)phenyl]methyl}sulfanyl)-8,9-dimethoxy-2H,3H-imidazo[1,2-c]quinazolin-2-one (CAS 439109-35-0)
- (4R,4′R)-2,2′-[2-Bromo-5-(1,1-dimethylethyl)-1,3-phenylene]bis[4,5-dihydro-4-phenyloxazole] (CAS 1056696-58-2)
- 4,4'-Bis((4-chlorophenyl)sulfonyl)-1,1'-biphenyl (CAS 22287-56-5)
- (2-Azanidyl-1,2-diphenylethyl)azanide,platinum(2+),sulfuric acid (CAS 78391-45-4)
- Etrasimod Impurity 78 (CAS CATO-C4X-321478)
- Mirogabalin Impurity 26 (CAS 5204-80-8)
- Thioctic acid Impurity 97 (CAS CATO-C4X-152697)
- RAF 265 (CAS 927880-90-8)
- (E)-Methyl 3-(3-chloro-4-methoxyphenyl)acrylate (CAS 1187248-43-6)
- 2,4-Dibromo-5-(((tert-butyldimethylsilyl)oxy)methyl)thiazole (CAS 870063-21-1)
- (S)-2-Phenylpiperidin-4-one hydrochloride (CAS 1391730-47-4)
- Methyl (1R,2R)-2-(4-aminophenyl)cyclopropane-1-carboxylate (CAS 1356600-10-6)
- Methyl 5-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1234616-83-1)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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