Tadalafil Impurity 151 CAS 2520114-64-9
| CAS No. | 2520114-64-9 |
| Molecular Formula | C30H24N4O4 |
| Molecular Weight | 504.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Tadalafil Impurity 151 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.
CATO supplies Tadalafil Impurity 151 (CAS 2520114-64-9), a pharmacopoeial impurity reference standard (molecular formula C30H24N4O4, MW 504.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Tadalafil Impurity 151 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 504.54 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.
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.
Physical & Chemical Properties
| Molecular Formula | C30H24N4O4 |
| Molecular Weight | 504.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 4 |
Related Tadalafil Standards
- Tadalafil Impurity 77 (CAS 2064212-00-4)
- Tadalafil Impurity 68 (CAS CATO-C4X-108768)
- Tadalafil Impurity 69 (CAS CATO-C4X-108769)
- Tadalafil Impurity 51 (CAS CATO-C4X-108751)
- Tadalafil Impurity 150 (CAS 2361527-35-5)
- Tadalafil Impurity 108 (CAS CATO-C4X-1087108)
- Tadalafil Impurity 168 (CAS CATO-C4X-1087168)
- Tadalafil Impurity 109 (CAS CATO-C4X-1087109)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com