Udenafil Impurity 2 CAS 268204-07-5
| CAS No. | 268204-07-5 |
| Molecular Formula | C24H34N6O4S |
| Molecular Weight | 502.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Udenafil Impurity 2 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Udenafil Impurity 2 (CAS 268204-07-5, C24H34N6O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Udenafil Impurity 2 (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. 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.
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 |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Udenafil Standards
Recommended Standards
- 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)
- Vardenafil Impurity 38 (CAS 224787-06-8)
- N-(2,6-diethylphenyl)-2-((5-((4-methoxyphenoxy)methyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332912-78-4)
- Vardenafil Impurity 41 (CAS CATO-C4X-101741)
- Ciclesonide Impurity 2 (CAS 886861-17-2)
- Cefcapene Impurity 49 (CAS CATO-C4X-182449)
- Ceftazidime Impurity 18 (CAS CATO-C4X-121218)
- 2-Bromo-3,4,5,6-tetrafluorobenzoic acid (CAS 16583-04-3)
- Methyl 1'-tosylspiro[cyclohexane-1,3'-indoline]-5'-carboxylate (CAS 2227206-21-3)
- 2-(2,5-Dioxopyrrolidin-1-yl)benzoic acid (CAS 80022-74-8)
- 3-(4-methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol (CAS 901273-03-8)
- 5-(Methoxycarbonyl)furan-2-carboxylic Acid (CAS 6750-85-2)
- (3aR,4S,4aR,7aS,8R,9aS)-4a,8-Dimethyl-3-methylene-2,5-dioxododecahydroazuleno[6,5-b]furan-4-yl acetate (CAS 54999-07-4)
- Neuropeptide Y (2-36), amide, porcine (CAS 102961-52-4)
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