Maxacalcitol impurity 43 CAS 81506-25-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 81506-25-4 |
| Molecular Formula | C21H41ClO2Si2 |
| Molecular Weight | 417.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Maxacalcitol impurity 43 (CAS 81506-25-4) pharmacopoeial impurity standards reference standard. Molecular formula: C21H41ClO2Si2. Molecular weight: 417.17 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H41ClO2Si2 |
| Molecular Weight | 417.17 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
Related Maxacalcitol Standards
- Maxacalcitol (CAS 103909-75-7)
- Maxacalcitol Impurity 1 (CAS 169218-34-2)
- Maxacalcitol Impurity 11 (CAS 142785-55-5)
- Maxacalcitol Impurity 12 (CAS 142927-18-2)
- Maxacalcitol Impurity 2 (CAS 221696-55-5)
- Maxacalcitol Impurity 3 (CAS 132071-85-3)
- Maxacalcitol Impurity 4 (CAS 338956-39-1)
- Maxacalcitol Impurity 7 (CAS CATO-C4X-27887)
Recommended Standards
- 3-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-1,2,4-triazol-3-yl}-1-(4-chlorophenyl)urea (CAS 303144-55-0)
- N'-[(1E)-(3-Bromo-2-hydroxy-5-methoxyphenyl)methylidene]-4-(trifluoromethyl)benzohydrazide (CAS 478248-94-1)
- Ifosfamide EP Impurity B (CAS 241482-18-8)
- Evocalcet impurity 53 (CAS 2107154-97-0)
- Empagliflozin Impurity 53 (CAS CATO-C4X-106553)
- Benzeneselenonic acid (CAS 10505-00-7)
- (2R)-3-fluoropyrrolidine-2-carboxylic acid (CAS 1315056-15-5)
- N-Methoxy-N,3-dimethyl-4-nitrobenzamide (CAS 1221342-55-7)
- 4-(((Diethoxyphosphoryl)methyl)imino)butyl acetate (CAS 60671-39-8)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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