Semaglutide impurity 331 CAS CATO-C4X-2226231
| CAS No. | CATO-C4X-2226231 |
| Molecular Formula | C11H18N2O4 |
| Molecular Weight | 242.27 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 Semaglutide impurity 331 (CAS CATO-C4X-2226231), a pharmacopoeial impurity reference standard (molecular formula C11H18N2O4, MW 242.27 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Semaglutide impurity 331 (C11H18N2O4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures Semaglutide impurity 331 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 | C11H18N2O4 |
| Molecular Weight | 242.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 | 2 |
Related Semaglutide Standards
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
- Semaglutide Impurity 5 (CAS 23406-82-8)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
Recommended Standards
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- Ozefloxacin Impurity 20 (CAS CATO-C4X-279620)
- Ethambutol EP Impurity B (2R,2’S-Ethambutol) DiHCl (CAS 32454-69-6)
- 2,3-Dihydro Acrivastine (CAS 87849-01-2)
- Betamethasone impurity 53 (CAS CATO-C4X-143753)
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- 3-Iodo-2,5,7-trimethylpyrazolo[1,5-a]pyrimidine (CAS 802983-95-5)
- 3,4-Dimethoxy-5-[(1e)-prop-1-en-1-yl]benzoic acid (CAS 877041-35-5)
- 3-Chlorotetrahydropyran-4-one (CAS 160427-98-5)
- 3-Chloropyridine (CAS 626-60-8)
- (E)-4,4,4-Trifluorobut-2-enenitrile (CAS 84476-96-0)
- Hexapeptide-11 (CAS 100684-36-4)
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