Tadalafil EP Impurity E CAS 2520114-41-2
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 2520114-41-2 |
| Molecular Formula | C22H19N3O6 |
| Molecular Weight | 421.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Tadalafil EP Impurity E (CAS 2520114-41-2) pharmacopoeial impurity standards reference standard. Molecular formula: C22H19N3O6. Molecular weight: 421.40 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C22H19N3O6 |
| Molecular Weight | 421.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 3 |
Related Tadalafil Standards
- Tadalafil Impurity 167 (CAS CATO-C4X-1087167)
- Tadalafil EP Impurity D (CAS CATO-C4X-10874)
- Tadalafil EP Impurity F (CAS 2747958-44-5)
- Tadalafil EP Impurity H (CAS 1978322-98-3)
- Tadalafil Impurity 32 (CAS CATO-C4X-108732)
- Tadalafil Impurity 62 (CAS CATO-C4X-108762)
- Tadalafil Impurity 82 (CAS CATO-C4X-108782)
- Tadalafil Impurity 162 (CAS CATO-C4X-1087162)
Recommended Standards
- Vonoprazan Impurity 296 (CAS CATO-C4X-1020296)
- Rivaroxaban Impurity 100 (CAS CATO-C4X-1090100)
- 1-((5-(2-Fluorophenyl)-1,2,4-oxadiazol-3-yl)methyl)-3-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)pyridin-2(1H)-one (CAS 1396859-49-6)
- Paclitaxel EP Impurity N (CAS 27548-93-2)
- Ketorolac impurity 01 (CAS 87549-01-7)
- N-(3,5-Dimethoxyphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477329-44-5)
- 5-(5-Bromo-3-methoxy-2-(prop-2-yn-1-yloxy)benzylidene)thiazolidine-2,4-dione (CAS 591745-14-1)
- 4,4'-Sulfinylbis((trifluoromethyl)benzene) (CAS 143028-36-8)
- Ergosta-7,9(11),24(28)-trien-3ß-ol (CAS 84223-03-0)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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 13829788188 / jacky.chen@cato-chem.com