Clemastine Impurity 7 Fumarate (R,S-isomer) CAS 61826-30-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 61826-30-0 |
| Molecular Formula | C21H26ClNO C4H4O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Clemastine Impurity 7 Fumarate (R,S-isomer) (CAS 61826-30-0) pharmacopoeial impurity standards reference standard. Molecular formula: C21H26ClNO C4H4O4. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H26ClNO C4H4O4 |
| Molecular Weight | 459.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Clemastine Standards
- Clemastine Impurity 27 (CAS 10095-17-7)
- Clemastine EP Impurity A(Mixture of Diastereomers) (CAS 108825-05-4)
- Clemastine Impurity 28 (CAS 1333340-87-6)
- Clemastine EP Impurity B (CAS 1352549-49-5)
- Clemastine fumarate (CAS 14976-57-9)
- Clemastine (CAS 15686-51-8)
- Clemastine Impurity 26 (CAS 171296-35-8)
- Clemastine Impurity 4 (CAS 20763-27-3)
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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