Dipyridamole EP Impurity B CAS 16908-47-7
| CAS No. | 16908-47-7 |
| Molecular Formula | C23H40N8O6 |
| Molecular Weight | 524.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dipyridamole EP Impurity B is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Dipyridamole EP Impurity B (CAS 16908-47-7, C23H40N8O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Dipyridamole EP Impurity B (C23H40N8O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Dipyridamole EP Impurity B under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H40N8O6 |
| Molecular Weight | 524.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 8 |
Related Dipyridamole Standards
- Dipyridamole D20 (CAS 1189983-52-5)
- Dipyridamole-d16 (CAS CATO-C4X-161810)
- Dipyridamole (CAS 58-32-2)
- Dipyridamole EP Impurity E (CAS 2365420-11-5)
- Dipyridamole EP Impurity A (CAS 16982-40-4)
- Dipyridamole EP Impurity F (CAS 60286-30-8)
- Dipyridamole EP Impurity D (CAS 1176886-12-6)
- Dipyridamole Tartaric Acid Mono Ester (CAS 68006-07-5)
Recommended Standards
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- 2-Propenoic acid, 3-[2,2-dimethyl-1-oxo-3-[(1-oxo-2-propen-1-yl)oxy]propoxy]-2,2-dimethylpropyl ester (CAS 30145-51-8)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
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 18665070610 / Nicole.chen@cato-chem.com