Enalapril-d5 Maleate CAS 349554-02-5
| CAS No. | 349554-02-5 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Enalapril-d5 Maleate (CAS 349554-02-5) is a high-purity analytical reference standard with the molecular formula C20H23D5N2O5C4H4O4 and a molecular weight of 497.56 g/mol.
Enalapril-d5 Maleate (C20H23D5N2O5C4H4O4) contains deuterium isotope labeling, 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).
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.
Physical & Chemical Properties
| Molecular Formula | C20H23D5N2O5 C4H4O4 |
| Molecular Weight | 497.56 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| 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
- (1-(2,5-Dichlorobenzyl)piperidin-2-yl)methanamine hydrochloride (CAS 1289387-62-7)
- Ethyl 2-fluoro-3-methylbut-2-enoate (CAS 685-89-2)
- Trifluoroacetic Acid-13C (CAS 2837-91-4)
- 2-{5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrophenoxy}propanoic acid (CAS 50594-48-4)
- N-methyl-1-(4-phenylthiazol-5-yl)methanamine (CAS 920439-00-5)
- Ammonium Perfluorohexane-1-Sulphonate (CAS 68259-08-5)
- 1-(tert-Butyl) 3-methyl 4-(((trifluoromethyl)sulfonyl)oxy)-5,6-dihydropyridine-1,3(2H)-dicarboxylate (CAS 161491-25-4)
- 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4-methylphenyl methacrylate (CAS 188680-81-1)
- 2-(2-(1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-indol-3-yl)acetyl)-N-phenylhydrazine-1-carbothioamide (CAS 339099-35-3)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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