Clemastine Impurity 17 CAS CATO-C4X-183717
| CAS No. | CATO-C4X-183717 |
| Molecular Formula | C15H15ClO |
| Molecular Weight | 246.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clemastine Impurity 17 (CAS CATO-C4X-183717) is a certified pharmaceutical impurity reference standard with the molecular formula C15H15ClO and a molecular weight of 246.73 g/mol.
The molecular framework of Clemastine Impurity 17 (C15H15ClO) is characterized by a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. 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).
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 Clemastine Impurity 17 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 | C15H15ClO |
| Molecular Weight | 246.73 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Clemastine Standards
- Clemastine Impurity 31 (CAS CATO-C4X-183731)
- Clemastine Impurity 12 (CAS CATO-C4X-183712)
- Clemastine EP Impurity C (CAS 59767-24-7)
- Clemastine Impurity 27 (CAS 10095-17-7)
- Clemastine Impurity 28 (CAS 1333340-87-6)
- Clemastine Impurity 29 (CAS 94511-39-4)
- Clemastine Impurity 30 (CAS CATO-C4X-183730)
- Clemastine Impurity 37 (CAS CATO-C4X-183737)
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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