Nitrendipine EP Impurity C CAS 21829-28-7
| CAS No. | 21829-28-7 |
| Molecular Formula | C19H22N2O6 |
| Molecular Weight | 374.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Nitrendipine EP Impurity C 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, Nitrendipine EP Impurity C (CAS 21829-28-7, C19H22N2O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Nitrendipine EP Impurity C (C19H22N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 374.39 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Nitrendipine 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.
Physical & Chemical Properties
| Molecular Formula | C19H22N2O6 |
| Molecular Weight | 374.39 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 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.) | 1963 |
| Nitrogen Atoms | 2 |
Related Nitrendipine Standards
- Nitrendipine-d5 (CAS 2469554-26-3)
- Nitrendipine Impurity 18 (CAS CATO-C4X-183418)
- (+)-Nitrendipine (CAS 80890-07-9)
- Nitrendipine (CAS 39562-70-4)
- Nitrendipine Impurity 2 (CAS CATO-C4X-18342)
- Nitrendipine impurity 19 (CAS CATO-C4X-183419)
- Nitrendipine EP Impurity A (CAS 89267-41-4)
- Nitrendipine Impurity 5 (CAS 74936-73-5)
Recommended Standards
- Entacapone Impurity 63 (CAS CATO-C4X-162963)
- Lenalidomide Impurity 33 (CAS CATO-C4X-190333)
- Entacapone Impurity 61 (CAS CATO-C4X-162961)
- Gadobutrol Impurity 133 (CAS 217975-51-4)
- Fulvestrant Impurity 21 (CAS 261506-24-5)
- Pimavanserin impurity 59 (CAS CATO-C4X-193859)
- Pimobendan Impurity 14 (CAS CATO-C4X-246114)
- tert-Butyl (1-benzylazetidin-3-yl)carbamate (CAS 1000577-78-5)
- tert-butyl N-(2-phenyl-1,3-thiazol-5-yl)carbamate (CAS 1820747-32-7)
- 4-Cyano-2-(difluoromethyl)-3-hydroxypyridine-6-carboxylic acid (CAS 1804490-97-8)
- 3-(3-(4-Chlorophenoxy)-2-oxopyrrolidin-1-yl)benzoic acid (CAS 649774-19-6)
- 5-Chlorovaleryl Chloride (CAS 1575-61-7)
- 4-(Benzo[d][1,3]dioxol-5-yl)cyclohexan-1-amine (CAS 933712-74-4)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
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