Enalapril Maleate EP Impurity H CAS CATO-C4X-13341
| CAS No. | CATO-C4X-13341 |
| Molecular Formula | C20H34N2O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Enalapril Maleate EP Impurity H meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Enalapril Maleate EP Impurity H (CAS CATO-C4X-13341, C20H34N2O5C4H4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C20H34N2O5C4H4O4, Enalapril Maleate EP Impurity H contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 498.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C20H34N2O5 C4H4O4 |
| Molecular Weight | 498.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| 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
- Suvorexant Impurity 18 (CAS 1785606-18-9)
- Amorolfine Impurity 13(Isomer mixture) (CAS 74880-04-9)
- Tolvaptan Impurity 68 (CAS 1580889-24-2)
- 1-Phenyl-1H-imidazole-2-carboxylic acid (CAS 516492-57-2)
- (1S)-(6,6'-Dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(dicyclopentylphosphine) (CAS 150971-55-4)
- 5-(4-(Dimethylamino)phenyl)-3-methyl-5-oxopentanoic acid (CAS 951893-04-2)
- 2-(2,5-Dimethyl-pyrrol-1-yl)-5-methoxy-benzoic acid (CAS 872134-70-8)
- Piperidin-2-amine hydrochloride (CAS 1956341-84-6)
- (3R)-N,1-dimethylpyrrolidin-3-amine (CAS 792970-21-9)
- Des-Gln24-Tirzepatide (CAS CATO-CPTD788949)
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