Tadalafil Impurity 90 CAS 1978323-00-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1978323-00-0 |
| Molecular Formula | C22H17N3O5 |
| Molecular Weight | 403.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tadalafil Impurity 90 (CAS 1978323-00-0) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H17N3O5. Molecular weight: 403.39 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C22H17N3O5 |
| Molecular Weight | 403.39 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Related Tadalafil Standards
- Tadalafil Impurity 166 (CAS CATO-C4X-1087166)
- Tadalafil Impurity 63 (CAS 1346602-17-2)
- Tadalafil Impurity 64 (CAS CATO-C4X-108764)
- Tadalafil EP Impurity G (CAS 2520114-46-7)
- Tadalafil Impurity 141 (CAS 477970-21-1)
- Tadalafil Impurity 22 (CAS 1609405-34-6)
- Tadalafil Impurity 176 (CAS CATO-C4X-1087176)
- Tadalafil Impurity N1 (CAS 1220393-12-3)
Recommended Standards
- Nilvadipine Impurity 1 (CAS 1452166-70-9)
- Azoxystrobin (CAS 131860-33-8)
- Azoxystrobin-d4 (CAS 1346606-39-0)
- Policresulen Impurity 16 (CAS 17011-26-6)
- N-Nitroso Venlafaxine EP Impurity D (CAS 2680662-11-5)
- N-Methyl-N-(2-(methylamino)ethyl)morpholine-4-carboxamide (CAS 133171-78-5)
- 1-(3-(1H-Imidazol-5-yl)propyl)-3-(2-(ethylthio)ethyl)guanidine (CAS 144036-38-4)
- 3-((3-Chlorophenyl)amino)propanoic acid (CAS 21617-14-1)
- 5-Oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxylic acid (CAS 386715-42-0)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
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