Papaverine EP Impurity D (Papaveraldine) CAS 522-57-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 522-57-6 |
| Molecular Formula | C20H19NO5 |
| Molecular Weight | 353.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Papaverine EP Impurity D (Papaveraldine) (CAS 522-57-6) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H19NO5. Molecular weight: 353.37 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H19NO5 |
| Molecular Weight | 353.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Papaverine Standards
- Papaverine EP Impurity B (Papaverinol) (CAS 482-76-8)
- Papaverine impurity 25 (CAS 33520-96-6)
- Papaverine EP Impurity F (CAS 139-76-4)
- Papaverine impurity 24 (CAS 33490-73-2)
- Papaverine Impurity 26 (CAS CATO-C4X-206726)
- Papaverine Impurity 39 (CAS 75608-42-3)
- Papaverine Impurity 40 (CAS 361389-65-3)
- Papaverine Impurity 42 (CAS CATO-C4X-206742)
Recommended Standards
- Indobufen Impurity 61 (CAS CATO-C4X-179261)
- Roxadustat Impurity 15 (CAS CATO-C4X-221315)
- Nafamostat impurity 100 (CAS CATO-C4X-1332100)
- Empagliflozin impurity 213 (CAS CATO-C4X-1065213)
- Phenylbutazone EP Impurity A (CAS 3583-64-0)
- Ethyl 1-(2,5-dioxopyrrolidin-3-yl)piperidine-4-carboxylate (CAS 1455853-00-5)
- (2E)-2-{[(4-hydroxy-2-methylphenyl)amino]methylidene}-4,4-dimethyl-3-oxopentanenitrile (CAS 1025306-51-7)
- rel-Methyl (2R,4R)-4-(2-chloro-4-nitrophenoxy)pyrrolidine-2-carboxylate (CAS 1217687-34-7)
- 3-(2-Fluorophenyl)-4-((3-(furan-2-yl)-2-methylallylidene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 575460-13-8)
- (Glu1)-Fibrinopeptide B (human) (CAS 103213-49-6)
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