Donepezil Impurity 61 CAS 937362-16-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 937362-16-8 |
| Molecular Formula | C31H36NO3 Cl |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Donepezil Impurity 61 (CAS 937362-16-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C31H36NO3 Cl. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C31H36NO3 Cl |
| Molecular Weight | 506.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Donepezil Standards
- Donepezil Impurity 15 (CAS 1023500-88-0)
- Donepezil Impurity 44 (CAS 1026443-48-0)
- Donepezil Impurity 46 (CAS 1034439-43-4)
- Donepezil-d5 (CAS 1128086-25-8)
- Donepezil Impurity 55 (CAS 1189443-74-0 (free base))
- Donepezil Related Compound A HCl (CAS 120011-69-0)
- Donepezil Hydrochloride (CAS 120011-70-3)
- Donepezil Impurity 25 (CAS 120012-04-6)
Recommended Standards
- Folic Acid Impurity 35 (CAS 33157-07-2)
- Apixaban Impurity 82 (CAS 2614-10-0)
- N-[(4-Methylphenyl)methyl]-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105234-85-2)
- tert-Butyl 3-(aminomethyl)-3-methylazepane-1-carboxylate (CAS 1823794-69-9)
- 4-Methyl-3-(2,3,3-trimethylbutyl)-1h-pyrazol-5-amine (CAS 1347088-79-2)
- Vonoprazan Impurity 224 (CAS CATO-C4X-1020224)
- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
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