Enalapril Impurity 34 CAS CATO-C4X-133434
| CAS No. | CATO-C4X-133434 |
| Molecular Formula | C20H27N3O6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Enalapril Impurity 34 (CAS CATO-C4X-133434) is a certified pharmaceutical impurity reference standard with the molecular formula C20H27N3O6C4H4O4 and a molecular weight of 521.52 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Enalapril Impurity 34 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 521.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C20H27N3O6 C4H4O4 |
| Molecular Weight | 521.52 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
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
- Clopidogrel Impurity 12 (CAS 141196-64-7)
- Ceftazidime Impurity 81 (CAS CATO-C4X-121281)
- Glyceryl Trinitrate Solution EP Impurity C (CAS 620-12-2)
- Nafamostat Impurity 60 dimesylate (CAS CATO-C4X-133272)
- 1-(4'-Bromophenyl)-2-methylpropane 85% remainder isomer 1-BROMO-4-TERT-BUTYLBENZENE 1-BROMO-P-T-BUTYLBENZENE 3972-65-4 4-BROMO-TERT-BUTYLBENZENE 4-TERT-BUTYLBROMOBENZENE AS03466 ATTERCOP-CHM AT106509 BROMO(4-)-TERT-BUTYLBENZENE BUTYLBROMOBENZENE OTAVA-BB 1362071 P-BROMO-T-BUTYLBENZENE P-BROMO-TERT-BUTYLBENZENE P-TERT-BUTYL BROMO BENZENE (CAS 3972-65-4)
- Cis-9b-methyl-1,2,3,4,4a,9b-hexahydrodibenzo[b,d]furan (CAS 89228-56-8)
- Methyl 2-(4-Methoxyphenyl)propanoate (CAS 50415-73-1)
- methyl 3-(4-ethylphenyl)propanoate (CAS 169126-08-3)
- 4-Chloroisatin (CAS 6344-05-4)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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