Azelnidipine Impurity 11 CAS CATO-C4X-104011
| CAS No. | CATO-C4X-104011 |
| Molecular Formula | C19H20N2O3 |
| Molecular Weight | 324.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Azelnidipine Impurity 11 (CAS CATO-C4X-104011), a pharmacopoeial impurity reference standard (molecular formula C19H20N2O3, MW 324.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H20N2O3, Azelnidipine Impurity 11 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 324.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Azelnidipine Impurity 11 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 | C19H20N2O3 |
| Molecular Weight | 324.37 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 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 |
| Nitrogen Atoms | 2 |
Related Azelnidipine Standards
- Azelnidipine Impurity 9 (CAS CATO-C4X-10409)
- Azelnidipine Impurity 6 (CAS 50626-68-1)
- Azelnidipine Impurity 4 (CAS 1655504-77-0)
- Azelnidipine Impurity 5 (CAS 103426-18-2)
- Azelnidipine Impurity 1 (CAS 918659-10-6)
- Azelnidipine (CAS 123524-52-7)
- Azelnidipine Impurity 7 (CAS CATO-C4X-10407)
- Azelnidipine Impurity 8 (CAS CATO-C4X-10408)
Recommended Standards
- 2H-1-Benzopyran-2-one,8-[1-(acetyloxy)-3- methyl-2-oxobutyl]-7-methoxy-,(+)- 95360-22-8 (CAS 95360-22-8)
- Gefitinib Impurity 49 (CAS 214472-41-0)
- Carbamic acid, [4-?[[(2-?methoxyethoxy)?acetyl]?amino]?phenyl]?-?, 1,?1-?dimethylethyl ester 851652-00-1 A1-01314 (CAS 851652-00-1)
- Trimethoprim EP Impurity I (CAS CATO-C4X-122519)
- Xylometazoline Impurity 14 (CAS CATO-C4X-178214)
- Etomidate EP Impurity A (CAS 56649-48-0)
- Ruxolitinib Impurity N6 (CAS 941685-39-8)
- Upadacitinib Impurity 116 (CAS CATO-C4X-2405116)
- 2-((4-Chlorophenoxy)methyl)morpholine (CAS 167273-58-7)
- Ethyl 4-bromo-2-formylthiophene-3-carboxylate (CAS 1433203-92-9)
- Methyl Benzoate-2,3,4,5,6-d5 (CAS 68661-19-8)
- Ceftizoxime sodium (CAS 68401-82-1)
- 1,6,8-Trimethyl-1,6-dihydrodipyrazolo[3,4-b:3',4'-d]pyridin-3(2H)-one (CAS 81153-35-7)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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