Vardenafil Impurity 41 CAS CATO-C4X-101741
| CAS No. | CATO-C4X-101741 |
| Molecular Formula | C24H34N6O4S |
| Molecular Weight | 502.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Vardenafil Impurity 41 (C24H34N6O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 502.63 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a process- or degradation-related impurity, Vardenafil Impurity 41 (CAS CATO-C4X-101741, C24H34N6O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 | C24H34N6O4S |
| Molecular Weight | 502.63 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Impurity 38 (CAS 224787-06-8)
- Vardenafil Impurity 42 (CAS CATO-C4X-101742)
- Vardenafil Impurity 40 (CAS CATO-C4X-101740)
- Vardenafil Impurity 43 (CAS CATO-C4X-101743)
- Vardenafil Impurity 3 (CAS 224785-98-2)
- Vardenafil USP Related Compound D (CAS 448184-48-3)
- Vardenafil Impurity N1 (CAS 448184-56-3)
- Vardenafil Impurity 33 (CAS CATO-C4X-101733)
Recommended Standards
- Udenafil Impurity 2 (CAS 268204-07-5)
- Sildenafil Impurity 29 (CAS 1093065-15-6)
- N-(4-(4,5-Dihydro-1H-imidazol-2-yl)benzyl)-2-(2-(4-methoxy-N,2,6-trimethylphenylsulfonamido)ethoxy)-N-methylacetamide (CAS 633698-99-4)
- Sildenafil Impurity 72 (CAS 2840532-32-1)
- Olaparib Impurity 42 (CAS CATO-C4X-113542)
- Norepinephrine Impurity 47 (CAS 926-61-4)
- Mizolastine Impurity 9 (CAS CATO-C4X-20069)
- 1,1'-(3-Aminopyridine-2,6-diyl)bis(ethan-1-one) (CAS 1135370-81-8)
- (2-((2-(Methylthio)ethyl)amino)ethyl)diphenylphosphine oxide (CAS 1839552-30-5)
- β-Bromohydrocinnamic Acid (CAS 15463-91-9)
- 2-(4-Formyl-2-methoxyphenoxy)-n-(2-methylphenyl)acetamide (CAS 247592-67-2)
- 2,3-D methyl ester (CAS 1928-56-9)
- 2-(4-Methoxybenzylidene)-5-thioxopyrazolidin-2-ium-1-ide (CAS 122375-39-7)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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