Donepezil quaternary salt(donepezilbenzyl) CAS 844694-85-5
| CAS No. | 844694-85-5 |
| Molecular Formula | C31H36NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Donepezil quaternary salt(donepezilbenzyl) (CAS 844694-85-5), molecular formula C31H36NO3Br and molecular weight 550.54 g/mol, is a CATO reference standard with documented purity and traceability.
Donepezil quaternary salt(donepezilbenzyl) (C31H36NO3Br) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Donepezil quaternary salt(donepezilbenzyl) 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 | C31H36NO3 Br |
| Molecular Weight | 550.54 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 | Br-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
- 2-((4-(2-Fluorophenyl)piperazin-1-yl)methyl)-2,3-dihydroimidazo[1,2-c]quinazolin-5(1H)-one (CAS 477859-05-5)
- 2-amino-4-(m-tolyl)butanoic acid (CAS 225233-70-5)
- 1189661-61-7 4-Fluorophenethyl Bromide-d4 (CAS 1189661-61-7)
- 2-Amino-3-(2-chlorobenzoyl)-5-(2-carbomethoxyethyl)thiophene (CAS 100827-77-8)
- 3-(2,4-Difluorobenzoyl)thiophene (CAS 898771-60-3)
- 2-Bromodibenzofuran (CAS 86-76-0)
- 3-(2-Oxopyrrolidin-1-yl)-5-(trifluoromethyl)benzoic acid (CAS 1244030-93-0)
- 3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-amine (CAS 114212-86-1)
- N-(3-Fluorophenyl)benzamide (CAS 1629-15-8)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com