Avanafil Impurity 40 CAS 1638497-25-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1638497-25-2 |
| Molecular Formula | C18H21ClN4O4 |
| Molecular Weight | 392.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Avanafil Impurity 40 (CAS 1638497-25-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H21ClN4O4. Molecular weight: 392.84 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H21ClN4O4 |
| Molecular Weight | 392.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Avanafil Standards
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Recommended Standards
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- Ethyl (3e)-4-ethoxy-3-methyl-2-oxobut-3-enoate (CAS 1071847-27-2)
- Methyl 5-ethyl-7-(3-hydroxyphenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 879935-79-2)
- Gastric Inhibitory Polypeptide (human) (CAS 100040-31-1)
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