Caspofungin EP Impurity C(RRT=1.81) CAS CATO-C4X-157544
| CAS No. | CATO-C4X-157544 |
| Molecular Formula | C102H168N18O30 |
| Molecular Weight | 2126.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Caspofungin EP Impurity C(RRT=1.81) (CAS CATO-C4X-157544, C102H168N18O30) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C102H168N18O30, Caspofungin EP Impurity C(RRT=1.81) 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 2126.53 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.
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 | C102H168N18O30 |
| Molecular Weight | 2126.53 g/mol |
| Purity | >90% |
| 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) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 18 |
Related Caspofungin Standards
- Caspofungin Dimer Ⅰ (CAS CATO-C4X-157529)
- Caspofungin Impurity 16 (CAS CATO-C4X-157516)
- Caspofungin Impurity 19 (CAS CATO-C4X-157519)
- Caspofungin Impurity 18 (CAS CATO-C4X-157518)
- Caspofungin impurity 57 (CAS CATO-C4X-157557)
- Caspofungin Impurity 9 (CAS CATO-C4X-157511)
- Caspofungin Impurity A02-2 (CAS 1404083-47-1)
- Caspofungin Ethanolamine Impurity (CAS CATO-C4X-157540)
Recommended Standards
- Sugammadex Impurity Org205485-1 (CAS CATO-C4X-190611)
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- Hexakis(1H,1H,7H-perfluoroheptoxy)phosphazene (CAS 3830-74-8)
- Formoterol Impurity 48 (CAS 87179-33-7)
- Palbociclib Impurity 121 (CAS 1974279-40-7)
- zanubrutinib Impurity 5 (CAS CATO-C4X-21015)
- 4-Bromo-1-(pyridin-2-ylmethyl)pyridin-2(1h)-one (CAS 1823322-62-8)
- 4-(2,4-Dimethylphenyl)-5-(4-(piperidin-1-ylsulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-00-6)
- 6-acetyl-4,4-dimethyl-3,4-dihydro-1H-quinolin-2-one (CAS 651026-51-6)
- Rosuvastatin Impurity 92 (CAS CATO-C4X-116992)
- N-(5-chloro-2-methylphenyl)-3-methylbut-2-enamide (CAS 634162-38-2)
- 3-Cyclopropoxyazetidine hydrochloride (CAS 1254477-67-2)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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