Donepezil Impurity 19 CAS 870555-76-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 870555-76-3 |
| Molecular Formula | C24H29NO3 C2H2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Donepezil Impurity 19 (CAS 870555-76-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C24H29NO3 C2H2O4. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C24H29NO3 C2H2O4 |
| Molecular Weight | 469.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| 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
- 3-(1-Methyl-1H-1,2,4-triazol-5-yl)azetidin-3-ol (CAS 1849287-16-6)
- 2-Methyl-3-(4-methyl-1,2,3-thiadiazole-5-carboxamido)propanoic acid (CAS 1251331-80-2)
- 4-Formylnaphthalene-1-carboxylic acid (CAS 219685-15-1)
- 2-Amino-2-(3,4-difluorophenyl)acetonitrile (CAS 218449-30-0)
- (2S,3R)-3-((R)-1-Hydroxyethyl)-4-oxoazetidine-2-carboxylic acid (CAS 119720-14-8)
- 2-(1H-Indol-3-yl)-N-(2-(methylthio)phenyl)-2-oxoacetamide (CAS 852367-71-6)
- (Pro30,Tyr32,Leu34)-Neuropeptide Y (28-36) (CAS 161650-01-7)
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 13829788188 / jacky.chen@cato-chem.com