Difelikefalin Impurity 29 CAS CATO-C4X-304129
| CAS No. | CATO-C4X-304129 |
| Molecular Formula | C18H35N5O4 |
| Molecular Weight | 385.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Difelikefalin Impurity 29 (CAS CATO-C4X-304129), a pharmacopoeial impurity reference standard (molecular formula C18H35N5O4, MW 385.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Difelikefalin Impurity 29 (C18H35N5O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Difelikefalin Impurity 29 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 | C18H35N5O4 |
| Molecular Weight | 385.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Difelikefalin Standards
- Difelikefalin Impurity 2 (CAS 1281870-46-9)
- Difelikefalin Impurity 3 (CAS 956977-18-7)
- Difelikefalin Impurity 4 (CAS 1173664-52-2)
- Difelikefalin Impurity 1 (CAS 956242-62-9)
- Difelikefalin Impurity 95 (CAS CATO-C4X-304195)
- Difelikefalin Impurity 7 (CAS 956233-15-1)
- Difelikefalin Impurity 91 (CAS CATO-C4X-304191)
- Difelikefalin Impurity 44 (CAS 957006-52-9)
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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