Vardenafil Impurity 38 CAS 224787-06-8
| CAS No. | 224787-06-8 |
| Molecular Formula | C24H34N6O4S |
| Molecular Weight | 502.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Vardenafil Impurity 38.
CATO supplies Vardenafil Impurity 38 (CAS 224787-06-8), a pharmacopoeial impurity reference standard (molecular formula C24H34N6O4S, MW 502.63 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Vardenafil Impurity 38 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 502.63 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.
As a certified reference material (CRM), Vardenafil Impurity 38 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 | 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.) | 2021 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Impurity 41 (CAS CATO-C4X-101741)
- 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)
- 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)
- N-(2,6-diethylphenyl)-2-((5-((4-methoxyphenoxy)methyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332912-78-4)
- Sildenafil Impurity 29 (CAS 1093065-15-6)
- Eltrombopag Impurity 106 (CAS CATO-C4X-1198106)
- Midazolam Impurity 24 (CAS CATO-C4X-150924)
- Clenbuterol impurity 12 (CAS CATO-C4X-199312)
- (4-Amino-3-fluoro-5-methoxyphenyl)dimethylphosphine oxide (CAS 2883047-03-6)
- 5-(2-Bromophenyl)-3-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 622-18-4)
- 2-Fluoro-6-(trifluoromethyl)quinoxaline (CAS 112080-08-7)
- 3-(Phenylethynyl)benzonitrile (CAS 37696-03-0)
- 1-(3'-Fluoro[1,1-biphenyl]-3-yl)ethanone (CAS 886762-37-4)
- Methyl 1-(2,4-Dichlorophenyl)-4-oxocyclohexanecarboxylate (CAS 1408058-16-1)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com