Semaglutide238 CAS CATO-C4X-2226238
| CAS No. | CATO-C4X-2226238 |
| Molecular Formula | C49H91N3O13 |
| Molecular Weight | 930.26 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.
CATO supplies Semaglutide238 (CAS CATO-C4X-2226238), a pharmacopoeial impurity reference standard (molecular formula C49H91N3O13, MW 930.26 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C49H91N3O13, Semaglutide238 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 930.26 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C49H91N3O13 |
| Molecular Weight | 930.26 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Semaglutide Standards
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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- Doxapram Impurity 1 (2-Ketodoxapram) (CAS 42595-88-0)
- Formoterol impurity 139 (CAS CATO-C4X-1525139)
- methyl (3S)-3-amino-3-(3-bromophenyl)propanoate hydrochloride (CAS 1391379-45-5)
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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