Azelastine Impurity 25 CAS 33148-55-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 33148-55-9 |
| Molecular Formula | C15H12O3 |
| Molecular Weight | 240.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Azelastine Impurity 25 (CAS 33148-55-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C15H12O3. Molecular weight: 240.25 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C15H12O3 |
| Molecular Weight | 240.25 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Azelastine Standards
- Azelastine Impurity 7 (CAS 787-84-8)
- Azelastine Impurity 46 (CAS 109386-70-1)
- Azelastine EP Impurity B (CAS 110406-94-5)
- Azelastine Impurity 10 (CAS 6315-60-2)
- Azelastine impurity 53 (CAS CATO-C4X-139653)
- Azelastine Impurity 16 (CAS 956-07-0)
- Azelastine EP Impurity E (Z-Isomer) (CAS 105279-16-1)
- Azelastine EP Impurity E (CAS 20526-97-0)
Recommended Standards
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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 13829788188 / jacky.chen@cato-chem.com