Vardenafil Oxopiperazine (Impurity) CAS 448184-58-5
| CAS No. | 448184-58-5 |
| Molecular Formula | C21H26N6O5S |
| Molecular Weight | 474.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Vardenafil Oxopiperazine (Impurity) (CAS 448184-58-5) is a high-purity analytical reference standard with the molecular formula C21H26N6O5S and a molecular weight of 474.53 g/mol.
Vardenafil Oxopiperazine (Impurity) (C21H26N6O5S) contains a flavonoid core, an amide group, a sulfone 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. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Vardenafil Oxopiperazine (Impurity) 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 | C21H26N6O5S |
| Molecular Weight | 474.53 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Acetyl-d5 Analogue (CAS 1330171-51-1)
- Vardenafil Acetyl Analogue (CAS 1261351-28-3)
- Vardenafil Impurity 31 (CAS CATO-C4X-101731)
- Vardenafil Impurity 36 (CAS 224788-36-7)
- Vardenafil USP Related Compound E (CAS 448184-46-1)
- Vardenafil EP impurity A (CAS CATO-C4X-101722)
- Vardenafil EP Impurity A (CAS 2169247-39-4)
- Vardenafil Impurity 66 (CAS CATO-C4X-101766)
Recommended Standards
- Glipizide Impurity 51 (CAS CATO-C4X-140751)
- Dabigatran-d3 (CAS 1246817-44-6)
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- Canagliflozin Impurity 53 (CAS 1030825-21-8)
- 1-Benzyl-3-(chloromethyl)azetidine (CAS 99025-92-0)
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- 3-(t-Butyldimethylsilyloxy)-4,5-difluorophenylboronic acid (CAS 2377609-56-6)
- 3-Carboxy-N,N,N-trimethyl-2-[(1-oxo-2-hexen-1-yl)oxy]-1-propanaminium Inner Salt (CAS 99452-58-1)
- 2-Methyl-5-oxo-2,5-dihydro-1H-pyrazole-3-carbohydrazide (CAS 844891-24-3)
- 2-Chloro-1-(difluoromethyl)-3,4-difluorobenzene (CAS 1261561-92-5)
- 6-Fluoropyridine-3-boronic Acid Pinacol Ester (CAS 444120-95-0)
- Vortioxetine Impurity 73 (CAS 66698-28-0)
- (1s)-1-(5-Chlorothiophen-2-yl)ethan-1-ol (CAS 111216-61-6)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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