Semaglutide Impurity 121 X Sodium Salt CAS CATO-C4X-2226121
| CAS No. | CATO-C4X-2226121 |
| Molecular Formula | C187H291N45O59 |
| Molecular Weight | 4113.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121) is a certified pharmaceutical impurity reference standard with the molecular formula C187H291N45O59 and a molecular weight of 4113.58 g/mol.
The molecular framework of Semaglutide Impurity 121 X Sodium Salt (C187H291N45O59) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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 Semaglutide Impurity 121 X Sodium Salt 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 | C187H291N45O59 |
| Molecular Weight | 4113.58 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) | 65.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 45 |
Related Semaglutide Standards
- Semaglutide (CAS 910463-68-2)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
- [Glu]17-Semaglutide (CAS CATO-CPTD788604)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
- Semaglutide (CAS CATO-C4X-2226105)
- [β-Asp]9-Semaglutide (CAS CATO-CPTD788605)
Recommended Standards
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
- D-[Ala]24-Semaglutide (CAS CATO-C4X-2226126)
- [a-Glu](Side chain transposition)- Semaglutide (CAS CATO-C4X-2226111)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
- Pemafibrate Impurity 7 (CAS 916515-17-8)
- Nicorandil Impurity 66 (CAS 2365474-05-9)
- Pivmecillinam EP Impurity A (CAS 25031-08-7)
- Tert-butyl 4-(4-chloro-2-formylphenyl)piperazine-1-carboxylate (CAS 869478-16-0)
- 4-Amino-3-propoxyphenol (CAS 1342281-39-3)
- 2-(((1-Hydroxypropan-2-yl)amino)methyl)phenol (CAS 1153891-99-6)
- N-(5-Amino-2-fluorophenyl)-2-(4-chloro-3-methylphenoxy)acetamide (CAS 1020056-19-2)
- Iprovalicarb (CAS 140923-17-7)
- Benzyl (3R)-3-(hydroxymethyl)piperidine-1-carboxylate (CAS 160706-61-6)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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