Regadenoson Impurity U18 CAS 2096-10-8
| CAS No. | 2096-10-8 |
| Molecular Formula | C10H14N6O4 |
| Molecular Weight | 282.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.26 g/mol gives Regadenoson Impurity U18 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Regadenoson Impurity U18 (CAS 2096-10-8) is a certified pharmaceutical impurity reference standard with the molecular formula C10H14N6O4 and a molecular weight of 282.26 g/mol.
Based on its molecular formula C10H14N6O4, Regadenoson Impurity U18 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 282.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Regadenoson Impurity U18 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 | C10H14N6O4 |
| Molecular Weight | 282.26 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.) | 1957 |
| Nitrogen Atoms | 6 |
Related Regadenoson Standards
- Regadenoson Impurity 50 (CAS CATO-C4X-198550)
- Regadenoson Impurity 35 (CAS CATO-C4X-198535)
- 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 28 (CAS 116002-29-0)
Recommended Standards
- Sunitinib Impurity 71 (CAS 83615-76-3)
- 5-(4-Methoxyphenyl)-1,1-dioxo-2h-1lambda6,2,6-thiadiazine-3-carboxylic acid (CAS 1011397-44-6)
- 2103-95-9 4-(4-Bromophenyl)-1,3-thiazole-2(3H)-thione DTXSID50499622 (CAS 2103-95-9)
- 5-(N-(Pyridin-3-ylmethyl)sulfamoyl)furan-2-carboxylic acid (CAS 1038353-98-8)
- Mirabegron EP Impurity F HCl (CAS 521284-21-9)
- Tiotropium Bromide Impurity 23 (CAS 54725-48-3)
- Metaraminol Impurity 16 (CAS 37951-47-6)
- 2-((4-Allyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-phenoxyphenyl)acetamide (CAS 573694-45-8)
- N-(2-ethyl-6-methylphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105223-93-5)
- N-(5-Cyclopropyl-2,7-dioxo-1,2,4,7-tetrahydropyrazolo[1,5-a]pyrimidin-3-yl)benzamide (CAS 1464091-42-6)
- rac Alminoprofen (CAS 39718-89-3)
- 5-(Aminomethyl)-1,2-oxazole-3-carboxamide (CAS 740783-92-0)
- 4-Formylphenyl propionate (CAS 50262-48-1)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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