Semaglutide impurity 258 CAS CATO-C4X-2226258
| CAS No. | CATO-C4X-2226258 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Semaglutide impurity 258 (CAS CATO-C4X-2226258) is a certified pharmaceutical impurity reference standard with the molecular formula N/A and a molecular weight of N/A g/mol.
Semaglutide impurity 258 is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
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.
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
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
Related Semaglutide Standards
- Semaglutide impurity 29 (CAS 110990-08-4)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
- Semaglutide impurity 29 (CAS 1188328-22-4)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
- Semaglutide impurity 103 (CAS 1446013-07-5)
Recommended Standards
- Olaparib Impurity 96 (CAS CATO-C4X-113596)
- Crisaborole Impurity 56 (CAS CATO-C4X-202156)
- Hydrochlorothiazide impurity 45 (CAS CATO-C4X-117745)
- 4-(Aminomethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)picolinaldehyde (CAS 1806169-73-2)
- 1-(6-Methylpyrimidin-4-yl)azetidin-3-ol (CAS 1341845-62-2)
- Lemborexant Impurity 52 (CAS CATO-C4X-304252)
- (1S,2S)-2-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)cyclopropane-1-carboxylic acid (CAS 2196202-80-7)
- Etoposide EP Impurity I (CAS 111712-42-6)
- 2-Bromo-4-methylbenzamide (CAS 131002-03-4)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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