Regadenoson Impurity 35 CAS CATO-C4X-198535
| CAS No. | CATO-C4X-198535 |
| Molecular Formula | C11H16N6O4 |
| Molecular Weight | 296.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Regadenoson Impurity 35 (CAS CATO-C4X-198535, C11H16N6O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Regadenoson Impurity 35 (C11H16N6O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C11H16N6O4 |
| Molecular Weight | 296.28 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 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 |
| Nitrogen Atoms | 6 |
Related Regadenoson Standards
- Regadenoson Impurity 11 (CAS 24723-77-1)
- Regadenoson Impurity 19 (CAS CATO-C4X-198519)
- Regadenoson Impurity 28 (CAS 3868-34-6)
- Regadenoson Impurity 29 (CAS 2222137-24-6)
- Regadenoson Impurity 8 (CAS 15763-11-8)
- Regadenoson Impurity 48 (CAS 10147-12-3)
- Regadenoson Impurity 13 (CAS 72635-67-7)
- Regadenoson Impurity 15 (CAS 2015222-35-0)
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