Vardenafil Impurity 54 CAS 1810028-99-9
| CAS No. | 1810028-99-9 |
| Molecular Formula | C19H25N5O4S |
| Molecular Weight | 419.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Vardenafil Impurity 54 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 419.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Vardenafil Impurity 54 (CAS 1810028-99-9, C19H25N5O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Vardenafil Impurity 54 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 | C19H25N5O4S |
| Molecular Weight | 419.50 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Impurity 29 (CAS 1009013-42-6)
- Vardenafil Impurity 14 (CAS CATO-C4X-101714)
- Vardenafil Impurity 56 (CAS CATO-C4X-101756)
- Vardenafil Impurity 59 (CAS CATO-C4X-101759)
- Vardenafil Impurity 57 (CAS CATO-C4X-101757)
- Vardenafil Impurity 15 (CAS CATO-C4X-101715)
- Vardenafil Impurity 53 (CAS CATO-C4X-101753)
- Vardenafil Impurity 16 (CAS CATO-C4X-101716)
Recommended Standards
- N-[4-(2-Phenoxyethoxy)benzyl]-3-(tetrahydro-2-furanylmethoxy)aniline (CAS 1040681-52-4)
- Trixylyl Phosphate-d9 (CAS CATO-C3D-262901)
- N-[3-(2-Phenoxyethoxy)benzyl]-2-(tetrahydro-2-furanylmethoxy)aniline (CAS 1040683-89-3)
- N-(4-methoxyphenyl)-2-(2-((phenylsulfinyl)methyl)-1H-benzo[d]imidazol-1-yl)acetamide (CAS 339100-80-0)
- Tetrabenazine Impurity 54 (CAS CATO-C4X-274854)
- Phenylbutazone Impurity 4 (CAS 30923-77-4)
- Indacaterol impurity 83 (CAS 1403389-05-8（free base)）)
- (2-(dimethylamino)thiazol-4-yl)methanol (CAS 162739-98-2)
- Methyl 4-(((4-aminocyclohexyl)amino)methyl)benzoate dihydrochloride (CAS 1286273-07-1)
- (2S,4S)-1-(tert-butoxycarbonyl)-4-((4-chloronaphthalen-1-yl)oxy)pyrrolidine-2-carboxylic acid (CAS 1354487-47-0)
- N-(3-Amino-4-methylphenyl)tetrahydro-2-furancarboxamide (CAS 1016719-28-0)
- 3-Methyl-5-(methylamino)-1,2-thiazole-4-carbonitrile (CAS 88394-37-0)
- 3,3-dimethoxybutan-1-amine (CAS 1368920-29-9)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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