Vardenafil Impurity 51 CAS CATO-C4X-101751
| CAS No. | CATO-C4X-101751 |
| Molecular Formula | C16H20N4O3 |
| Molecular Weight | 316.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Vardenafil Impurity 51 (CAS CATO-C4X-101751, C16H20N4O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Vardenafil Impurity 51 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 316.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures Vardenafil Impurity 51 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H20N4O3 |
| Molecular Weight | 316.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Vardenafil Standards
- Vardenafil Impurity 21 (Mixture of E/Z-Isomers) (CAS 68282-25-7)
- Vardenafil Impurity 52 (CAS 224789-22-4)
- Vardenafil Impurity 21 (CAS 927690-90-2)
- Vardenafil Impurity 47 (CAS 910554-78-8)
- Vardenafil Impurity 46 (CAS 1417529-59-9)
- Vardenafil Impurity 8 (CAS 224789-20-2)
- Vardenafil Impurity 24 (CAS 910554-77-7)
- Vardenafil Impurity 55 (CAS 2520113-41-9)
Recommended Standards
- N-Methyl-3-(4-phenoxyphenyl)imidazo[1,2-a]pyrazin-8-amine (CAS 787591-16-6)
- Linagliptin Impurity 15 (CAS 1791405-13-4)
- N-Methyl-3-(2-phenoxyphenyl)imidazo[1,2-a]pyrazin-8-amine (CAS 787590-79-8)
- N-Nitroso Zolmitriptan (CAS CATO-C4X-135130)
- Upadacitinib Impurity 94 (CAS CATO-C4X-240594)
- Tretinoin lmpurity 20 (CAS 173449-96-2)
- Fluoxetine Impurity 41 (CAS CATO-C4X-135241)
- 5-Carbamoyl-2-fluorobenzoic acid (CAS 1427082-77-6)
- (3R)-3-[2-(Methylthio)ethyl]-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (CAS 1217780-31-8)
- Methyl 3-methyl-5-(1H-pyrrol-1-yl)-1-(p-tolyl)-1H-pyrazole-4-carboxylate (CAS 1170475-98-5)
- 3-(5-Bromo-2-chloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole (CAS 1624262-44-7)
- Barium hydride (CAS 13477-09-3)
- 5-Cyclopropyl-2-iodopyridine (CAS 1384476-47-4)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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