Caspofungin Impurity 25 CAS CATO-C4X-157525
| CAS No. | CATO-C4X-157525 |
| Molecular Formula | C50H80N8O16 |
| Molecular Weight | 1049.21 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 1049.21 g/mol gives Caspofungin Impurity 25 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Caspofungin Impurity 25 (CAS CATO-C4X-157525), a pharmacopoeial impurity reference standard (molecular formula C50H80N8O16, MW 1049.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C50H80N8O16, Caspofungin Impurity 25 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 1049.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Caspofungin Impurity 25 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C50H80N8O16 |
| Molecular Weight | 1049.21 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
Related Caspofungin Standards
- Caspofungin Impurity 26 (CAS CATO-C4X-157526)
- Caspofungin Impurity 31(5-((3R)-3-Hydroxy-L-Ornithine)-Pneumocandin B0) (CAS 150283-04-8)
- Caspofungin EP Impurity B(RRT=1.50) (CAS 314080-31-4)
- Caspofungin Impurity 20 (CAS CATO-C4X-157520)
- Caspofungin Pneumocandin B0 Impurity (CAS 135575-42-7)
- Caspofungin Pneumocandin C0 (CAS 144074-96-4)
- Caspofungin Impurity 13 (CAS CATO-C4X-157513)
- Caspofungin Impurity 23 (CAS CATO-C4X-157523)
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- 6-Hydroxy-3-methylindazole (CAS 201286-99-9)
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Why CATO?
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