Nimodipine EP Impurity C CAS 70172-96-2
| CAS No. | 70172-96-2 |
| Molecular Formula | C21H26N2O8 |
| Molecular Weight | 434.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Nimodipine EP Impurity C 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.
Nimodipine EP Impurity C (CAS 70172-96-2) is a certified pharmaceutical impurity reference standard with the molecular formula C21H26N2O8 and a molecular weight of 434.44 g/mol.
The molecular framework of Nimodipine EP Impurity C (C21H26N2O8) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C21H26N2O8 |
| Molecular Weight | 434.44 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Nimodipine Standards
- Nimodipine Impurity 36 (CAS CATO-C4X-138536)
- Nimodipine Impurity 16 (CAS CATO-C4X-138516)
- Nimodipine Impurity 47 (CAS CATO-C4X-138547)
- Nimodipine impurity 43 (CAS CATO-C4X-138543)
- Nimodipine-d7 (CAS 1246815-36-0)
- Nimodipine Impurity 50 (CAS CATO-C4X-138550)
- Nimodipine Impurity 51 (CAS CATO-C4X-138551)
- Nimodipine Impurity 18 (CAS CATO-C4X-138518)
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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