Ensifentrine impurity 42 CAS CATO-C4X-335342
| CAS No. | CATO-C4X-335342 |
| Molecular Formula | C24H27N5O4 |
| Molecular Weight | 449.50 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, Ensifentrine impurity 42 (CAS CATO-C4X-335342, C24H27N5O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H27N5O4, Ensifentrine impurity 42 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 449.50 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.
CATO manufactures Ensifentrine impurity 42 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 | C24H27N5O4 |
| Molecular Weight | 449.50 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Ensifentrine Standards
- Ensifentrine impurity 9 (CAS CATO-C4X-33539)
- Ensifentrine Impurity 3 (CAS 3067475-18-4)
- Ensifentrine Impurity 4 (CAS 3067475-19-5)
- Ensifentrine impurity 10 (CAS CATO-C4X-335310)
- Ensifentrine Impurity 21 (CAS CATO-C4X-335321)
- Ensifentrine Impurity 22 (CAS 298680-39-4)
- Ensifentrine impurity 41 (CAS CATO-C4X-335341)
- Ensifentrine impurity 35 (CAS CATO-C4X-335335)
Recommended Standards
- Roxadustat Impurity 52 (CAS CATO-C4X-221352)
- Hyoscyamine Impurity 13 (CAS CATO-C4X-343713)
- Tobramycin Impurity 6 (CAS CATO-C4X-22006)
- Ac-Val-Tyr-Lys-NH2 (CAS 884009-99-8)
- Propetamphos Impurity 1 (CAS 99606-11-8)
- Olmesartan Impurity 109 (CAS 1867269-66-6)
- Mirabegron Impurity 71 (CAS 7369-50-8)
- 2-((3,5-Dichlorophenyl)sulfonyl)ethan-1-ol (CAS 101079-90-7)
- 3-(Trifluoromethyl)phenyl trifluoromethanesulfonate (CAS 199188-30-2)
- Ethyl 3,4-dihydropyrrolo[2,3-d]imidazole-5-carboxylate (CAS 1378833-56-7)
- 2H-Pyrazolo[3,4-b]pyridine (CAS 271-71-6)
- N2-Cyclopropylpyridine-2,5-diamine (CAS 896161-28-7)
- 4-(Isoquinolin-4-yl)but-3-yn-1-ol (CAS 119981-62-3)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
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