Donepezil Impurity 31 CAS 2097683-67-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 2097683-67-3 |
| Molecular Formula | C24H29NO4 |
| Molecular Weight | 395.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Donepezil Impurity 31 (CAS 2097683-67-3), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C24H29NO4. Molecular weight: 395.49 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C24H29NO4 |
| Molecular Weight | 395.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Related Donepezil Standards
- Donepezil EP impurity C (CAS 2452407-76-8)
- Donepezil Impurity 7 (CAS 120013-84-5)
- Donepezil Impurity 51 (CAS CATO-C4X-103951)
- Donepezil Impurity 53 (CAS 149874-81-7)
- Donepezil Impurity 74 (CAS CATO-C4X-103974)
- Donepezil Impurity 15 (CAS 1023500-88-0)
- Donepezil Impurity 40 (CAS 923571-16-8)
- Donepezil D7 (CAS 1215071-00-3)
Recommended Standards
- Hydroxydonepezil (CAS 197010-20-1)
- tert-Butyl (2-(4-(piperidin-4-yl)benzamido)phenyl)carbamate (CAS 934828-07-6)
- Tert-butyl (1R,5R)-10-(benzylamino)-8-oxo-1,5,6,8-tetrahydro-2H-1,5-methanopyrido[1,2-a][1,5]diazocine-3(4H)-carboxylate (CAS 2188182-46-7)
- Asciminib Impurity N1 (CAS 1492952-73-4)
- Metoclopramide impurity 72 (CAS CATO-C4X-141572)
- Propyl 4-ethoxybenzoate (CAS 5468-99-5)
- 3-(2-Fluorophenyl)-1-(1,2,3,4-tetrahydroquinolin-8-yl)urea (CAS 1016528-80-5)
- ethyl 3-fluoroazetidine-3-carboxylate hydrochloride (CAS 1803596-65-7)
- 6-tert-Butyl-2-{[4-(4-fluorophenyl)-4-oxobutyl]sulfanyl}-4-(thiophen-2-yl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 939888-64-9)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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