Azelastine impurity 56 CAS CATO-C4X-139656
| CAS No. | CATO-C4X-139656 |
| Molecular Formula | C10H17NO3 |
| Molecular Weight | 199.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Azelastine impurity 56 (C10H17NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Azelastine impurity 56 (CAS CATO-C4X-139656) is a certified pharmaceutical impurity reference standard with the molecular formula C10H17NO3 and a molecular weight of 199.25 g/mol.
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 Azelastine impurity 56 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 | C10H17NO3 |
| Molecular Weight | 199.25 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 1 |
Related Azelastine Standards
- Azelastine impurity 54 (CAS CATO-C4X-139654)
- Azelastine Impurity 71 (CAS CATO-C4X-139671)
- Azelastine Impurity 18 (CAS CATO-C4X-139618)
- Azelastine Impurity 21 (CAS 57676-51-4)
- Azelastine Impurity 70 (CAS CATO-C4X-139670)
- Azelastine Impurity 29 (CAS 174826-63-2)
- Azelastine Impurity 17 (CAS 1239312-56-1)
- Azelastine Impurity 16 (CAS 956-07-0)
Recommended Standards
- Butenafine Impurity 13 (CAS 759458-92-9)
- Ondansetron EP Impurity C (CAS 27387-31-1)
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- Conivaptan Impurity 2 (CAS 318237-73-9)
- Methylprednisolone Impurity 57 (CAS 1048031-80-6)
- Varenicline Impurity 69 (CAS CATO-C4X-196269)
- Empagliflozin impurity 185 (CAS CATO-C4X-1065185)
- Methyl 3-(benzo[d]oxazol-2-yl)benzoate (CAS 20000-55-9)
- 6-(Difluoromethyl)-3-methoxypicolinonitrile (CAS 1806029-91-3)
- 4-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-3-(methylsulfanyl)-1H-pyrazol-5-amine (CAS 1188304-93-9)
- Terbufos-Sulfone (CAS 56070-16-7)
- 4,5-Difluoro-2-iodobenzoic Acid (CAS 130137-05-2)
- Biotin-dPEG<SUP>®</SUP><SUB>7</SUB>-azide (CAS 1334172-75-6)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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