Nitrendipine Impurity 3 CAS 76258-20-3
| CAS No. | 76258-20-3 |
| Molecular Formula | C17H16N2O6 |
| Molecular Weight | 344.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 344.32 g/mol gives Nitrendipine Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Nitrendipine Impurity 3 (CAS 76258-20-3), a pharmacopoeial impurity reference standard (molecular formula C17H16N2O6, MW 344.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Nitrendipine Impurity 3 (C17H16N2O6) 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).
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 Impurity 3 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 | C17H16N2O6 |
| Molecular Weight | 344.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 2 |
Related Nitrendipine Standards
- Nitrendipine impurity 21 (CAS 1195583-65-3)
- Nitrendipine Impurity 7 (CAS 89267-42-5)
- Nitrendipine Impurity 4 (CAS CATO-C4X-18344)
- Nitrendipine Impurity 5 (CAS 74936-73-5)
- Nitrendipine EP Impurity A (CAS 89267-41-4)
- Nitrendipine Impurity 2 (CAS CATO-C4X-18342)
- (+)-Nitrendipine (CAS 80890-07-9)
- Nitrendipine (CAS 39562-70-4)
Recommended Standards
- Nintedanib Impurity 99 (CAS CATO-C4X-181499)
- Bifendate Impurity 4 (CAS CATO-C4X-25554)
- Nifedipine EP Impurity A (CAS 67035-22-7)
- Usnic acid (CAS 125-46-2)
- Fluorometholone Impurity 8 (CAS CATO-C4X-19338)
- Tenofovir disoproxil Impurity 137 (CAS CATO-C4X-1076137)
- Sitagliptin Impurity 34 (CAS 218608-98-1)
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- 4-Cyclohexylsulfonylbutanoic acid (CAS 922190-00-9)
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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