Budesonide EP Impurity L (Mixture of Epimer) CAS 216453-74-6
| CAS No. | 216453-74-6 |
| Molecular Formula | C25H32O6 |
| Molecular Weight | 428.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Budesonide EP Impurity L (Mixture of Epimer) (CAS 216453-74-6, C25H32O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C25H32O6, Budesonide EP Impurity L (Mixture of Epimer) contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 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.
CATO manufactures Budesonide EP Impurity L (Mixture of Epimer) 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 | C25H32O6 |
| Molecular Weight | 428.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2018 |
Related Budesonide Standards
- Budesonide Δ-6 Impurity (CAS 109458-75-5)
- Budesonide EP Impurity D (Mixture of Epimer) (CAS 85234-63-5)
- Budesonide EP Impurity E (CAS 131918-64-4)
- Budesonide Impurity 29 (CAS 51372-28-2)
- Budesonide EP Impurity C (CAS 1040085-99-1)
- Budesonide Impurity 48 (CAS 84197-04-7)
- Budesonide Impurity 73 (CAS CATO-C4X-138973)
- Budesonide Impurity 75 (CAS CATO-C4X-138975)
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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