Budesonide Impurity 68 CAS 74220-43-2
| CAS No. | 74220-43-2 |
| Molecular Formula | C23H30O6 |
| Molecular Weight | 402.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Budesonide Impurity 68 (CAS 74220-43-2), a pharmacopoeial impurity reference standard (molecular formula C23H30O6, MW 402.48 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Budesonide Impurity 68 (C23H30O6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Impurity 68 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 | C23H30O6 |
| Molecular Weight | 402.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Related Budesonide Standards
- Budesonide EP Impurity B（Mixture of diastereomers） (CAS 1040085-98-0)
- Budesonide Impurity 50 (CAS 111668-12-3)
- Budesonide Impurity 36 (CAS 77017-20-0)
- Budesonide Impurity 14 (CAS 5541-37-7)
- Budesonide impurity 44 (CAS CATO-C4X-138944)
- Budesonide EP Impurity H (Mixture of Epimer) (CAS 313474-58-7)
- Budesonide Impurity 81 (CAS CATO-C4X-138981)
- Budesonide Impurity 17 (CAS CATO-C4X-138917)
Recommended Standards
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- Desonide Impurity 9 (CAS 117782-94-2)
- Hydrocortisone Impurity 51 (CAS CATO-C4X-140151)
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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