Tirzepatide Impurity 37 CAS CATO-C4X-324037
| CAS No. | CATO-C4X-324037 |
| Molecular Formula | C234H372N50O72 |
| Molecular Weight | 5037.75 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.
Tirzepatide Impurity 37 (CAS CATO-C4X-324037) is a certified pharmaceutical impurity reference standard with the molecular formula C234H372N50O72 and a molecular weight of 5037.75 g/mol.
The molecular framework of Tirzepatide Impurity 37 (C234H372N50O72) 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. 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).
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
| Molecular Formula | C234H372N50O72 |
| Molecular Weight | 5037.75 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) | 74.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 50 |
Related Tirzepatide Standards
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
- Tirzepatide (CAS 2023788-19-2)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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