Enalapril Maleate Impurity 25 CAS CATO-C4X-133425
| CAS No. | CATO-C4X-133425 |
| Molecular Formula | C20H28N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Enalapril Maleate Impurity 25.
As a process- or degradation-related impurity, Enalapril Maleate Impurity 25 (CAS CATO-C4X-133425, C20H28N2O5C4H4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Enalapril Maleate Impurity 25 (C20H28N2O5C4H4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Enalapril Maleate Impurity 25 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 | C20H28N2O5 C4H4O4 |
| Molecular Weight | 492.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Enalapril Standards
- Enalapril tert-Butyl Ester (CAS 108428-39-3)
- Enalapril Maleate Impurity 26 (CAS 115623-21-7)
- Enalapril EP Impurity D (CAS 115729-52-7)
- Enalapril-d5 tert-Butyl Ester (CAS 1356837-84-7)
- Enalapril-d3DISCONTINUED. Please see E555258 and E555252 (CAS 1356847-94-3)
- Enalapril EP Impurity A Maleate (CAS 1356932-13-2)
- Enalapril Impurity 19 (CAS 15121-89-8)
- Enalapril Impurity N1 (CAS 17450-56-5)
Recommended Standards
- Albendazole Impurity 1 (CAS 22769-68-2)
- Baloxavir Marboxil Impurity 225 (CAS CATO-C4X-2108225)
- Posaconazole Impurity 166 (CAS 1631169-28-2)
- tert-butyl 3-(bromomethyl)-3-fluoroazetidine-1-carboxylate (CAS 1374658-83-9)
- 2-[(3,4-dichlorophenyl)methyl]-2-methylpyrrolidine hydrochloride (CAS 2060008-02-6)
- Atrasentan Impurity 208 (CAS CATO-C4X-3347208)
- 1-(5-fluoropyridin-2-yl)propan-1-ol (CAS 1536676-32-0)
- 1-(2-Aminoethyl)-N-benzyl-N-methylpiperidin-4-amine (CAS 1353962-70-5)
- 3-(4-Chloro-1h-pyrazol-1-yl)butanenitrile (CAS 1006333-97-6)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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 18665070610 / Nicole.chen@cato-chem.com