Enalapril Impurity 35 CAS CATO-C4X-133435
| CAS No. | CATO-C4X-133435 |
| Molecular Formula | C18H23N3O6 |
| Molecular Weight | 377.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Enalapril Impurity 35 (CAS CATO-C4X-133435, C18H23N3O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H23N3O6, Enalapril Impurity 35 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 377.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Enalapril Impurity 35 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.
Physical & Chemical Properties
| Molecular Formula | C18H23N3O6 |
| Molecular Weight | 377.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Enalapril Standards
- Enalapril (CAS 75847-73-3)
- Enalapril EP Impurity A (CAS 76420-74-1)
- Enalapril Impurity 39 (CAS 2055735-10-7)
- R-Enalapril Diketopiperazine (CAS CATO-C4X-133427)
- Enalapril EP Impurity D (CAS 115729-52-7)
- Enalapril EP Impurity C-d5 (CAS 349554-00-3)
- Enalapril EP Impurity F (CAS 76420-77-4)
- Enalapril Maleate EP Impurity F (CAS 76391-34-9)
Recommended Standards
- Tadalafil Impurity 81 (CAS CATO-C4X-108781)
- N-nitroso-enalaprilat (CAS CATO-C4X-133440)
- Desmethylene Tadalafil (CAS 171489-03-5)
- Bisacodyl Impurity 17 (CAS CATO-C4X-203717)
- Adenosine Impurity 20 (CAS 77530-02-0)
- Erlotinib Impurity 61 (CAS 20825-87-0)
- Imrecoxib Impurity 78 (CAS 23063-36-7)
- 5,7-Dimethylquinoxaline (CAS 1003707-24-1)
- 6-Acetyl-4-(p-tolylamino)quinoline-3-carbonitrile (CAS 1956331-65-9)
- 8-Chloro-4,4-dimethyl-1,2,3,4-tetrahydroquinoline (CAS 1187933-17-0)
- N-[2-(4-Chloro-3,5-dimethylphenoxy)ethyl]-N-(3-chloro-2-methylphenyl)amine (CAS 1040687-97-5)
- 3A-allyl-6a-methoxyhexahydro-2H-cyclopenta[b]furan (CAS 461025-78-5)
- 1-(3,4-dimethoxyphenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde (CAS 923772-28-5)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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