Semaglutide impurity 99 CAS CATO-C4X-222699
| CAS No. | CATO-C4X-222699 |
| Molecular Formula | C190H296N46O60 |
| Molecular Weight | 4184.72 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Semaglutide impurity 99 (CAS CATO-C4X-222699), a pharmacopoeial impurity reference standard (molecular formula C190H296N46O60, MW 4184.72 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Semaglutide impurity 99 (C190H296N46O60) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 66.0, corresponding to approximately 66 ring(s) or double-bond equivalent(s). With a molecular weight of 4184.72 g/mol, it falls into the high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C190H296N46O60 |
| Molecular Weight | 4184.72 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) | 66.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 46 |
Related Semaglutide Standards
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
- Semaglutide (CAS 910463-68-2（free base）)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
Recommended Standards
- Margatoxin (CAS 145808-47-5)
- Exenatide (CAS 141758-74-9)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
- Apelin-36 (human) (CAS 252642-12-9)
- Fluocinolone Acetonide Impurity 15 (CAS 1181-32-4)
- Linaclotide Impurity 20 (CAS CATO-C4X-210620)
- Noradrenalone EP Impurity B (CAS 499-61-6)
- 4-amino-1-ethyl-N-propyl-1H-pyrazole-3-carboxamide,HCl (CAS 1185005-86-0)
- 2-methyl-4-phenoxybenzoic acid (CAS 57830-13-4)
- 1-Chloro-6-(methylsulfonyl)hexane (CAS 1248380-44-0)
- 4-(4-Hydroxypiperidin-1-yl)-3-nitrobenzoic acid (CAS 942474-29-5)
- 4,6-Dibromochromane (CAS 1882373-48-9)
- Methyl 2-amino-5-methyl-4-(trifluoromethyl)benzoate (CAS 872624-53-8)
- Tyr-Proinsulin C-Peptide (55-89) (human) (CAS 139532-11-9)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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