Regadenoson Impurity 11 CAS 24723-77-1
| CAS No. | 24723-77-1 |
| Molecular Formula | C11H15N5O5 |
| Molecular Weight | 297.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Regadenoson Impurity 11 (CAS 24723-77-1) is a certified pharmaceutical impurity reference standard with the molecular formula C11H15N5O5 and a molecular weight of 297.27 g/mol.
Regadenoson Impurity 11 (C11H15N5O5) 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.
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 | C11H15N5O5 |
| Molecular Weight | 297.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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.) | 1964 |
| Nitrogen Atoms | 5 |
Related Regadenoson Standards
- 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 35 (CAS CATO-C4X-198535)
- Regadenoson Impurity 48 (CAS 10147-12-3)
- Regadenoson Impurity 13 (CAS 72635-67-7)
- Regadenoson Impurity 15 (CAS 2015222-35-0)
Recommended Standards
- Ganciclovir Impurity 30 (CAS CATO-C4X-102130)
- Ganciclovir Impurity 29 (CAS CATO-C4X-102129)
- Ganciclovir Impurity 18 (CAS CATO-C4X-102118)
- Ganciclovir Impurity 16 (CAS 88110-89-8)
- Cefuroxime Impurity 46 (CAS CATO-C4X-124546)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
- rac-Adrenaline EP Impurity D TFA salt (CAS 1095714-91-2(Free Base))
- Bacitracin Impurity M (CAS CATO-C4X-155313)
- Triacetic Acid Impurity 3 (CAS 862542-34-5)
- N-(4-((2-aminophenyl)thio)-3-nitrophenyl)acetamide (CAS 1017060-37-5)
- 1-(2-(Trifluoromethyl)benzyl)cyclobutanecarboxylic acid (CAS 1439900-63-6)
- 2-Propenoic acid, 2-methyl-, 2-[ethyl[(1,1,2,2,3,3,4,4,4-nonafluorobutyl)sulfonyl]amino]ethyl ester, polymer with octadecyl 2-propenoate and 2-propenoic acid (CAS 67939-34-8)
- N-nitroso-dalbavancin a1 (CAS CATO-C4X-160236)
- Neuropeptide FF (5-8) (CAS 152050-35-6)
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