Semaglutide Impurity 131 CAS 2618647-80-4
| CAS No. | 2618647-80-4 |
| Molecular Formula | C71H107N5O16 |
| Molecular Weight | 1286.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C71H107N5O16, Semaglutide Impurity 131 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 1286.63 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).
Semaglutide Impurity 131 (CAS 2618647-80-4) is a certified pharmaceutical impurity reference standard with the molecular formula C71H107N5O16 and a molecular weight of 1286.63 g/mol.
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.
As a certified reference material (CRM), Semaglutide Impurity 131 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C71H107N5O16 |
| Molecular Weight | 1286.63 g/mol |
| Purity | ≥95% |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 5 |
Related Semaglutide Standards
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
Recommended Standards
- Telomycin (CAS 19246-24-3)
- Mogroside V, 11-oxo- (CAS 126105-11-1)
- Chloroorienticin C (CAS 118373-82-3)
- Terlipressin Impurity 38 (CAS CATO-C4X-219338)
- Aztreonam impurity 68 (CAS 102579-59-9(free base))
- Ammoxetine Impurity 2 (CAS CATO-C4X-33572)
- Arbidol Impurity 9 (CAS CATO-C4X-11299)
- 2-Methoxy-6-(tributylstannyl)pyridine (CAS 164014-94-2)
- n-(1-(4-Chlorophenyl)ethyl)-2-methylpropan-1-amine (CAS 1019480-83-1)
- 1-(5-Hydroxynaphtho[1,2-b]furan-3-yl)ethanone (CAS 352553-09-4)
- Methyl 2-bromo-4-cyano-5-(difluoromethyl)benzoate (CAS 1805018-97-6)
- 2-(3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)acetic acid (CAS 500024-33-9)
- Ethyl 6-amino-5-cyano-2-methyl-4-(p-tolyl)-4H-pyran-3-carboxylate (CAS 89809-75-6)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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