Tirzepatide Impurity 13 CAS CATO-C4X-324013
| CAS No. | CATO-C4X-324013 |
| Molecular Formula | C70H113N5O16 |
| Molecular Weight | 1280.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 1280.67 g/mol gives Tirzepatide Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Tirzepatide Impurity 13 (CAS CATO-C4X-324013), a pharmacopoeial impurity reference standard (molecular formula C70H113N5O16, MW 1280.67 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C70H113N5O16, Tirzepatide Impurity 13 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 1280.67 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C70H113N5O16 |
| Molecular Weight | 1280.67 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Tirzepatide Standards
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
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