Caspofungin EP Impurity G Acetate CAS CATO-C4X-157532
| CAS No. | CATO-C4X-157532 |
| Molecular Formula | C52H88N10O15 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Caspofungin EP Impurity G Acetate (CAS CATO-C4X-157532) is a certified pharmaceutical impurity reference standard with the molecular formula C52H88N10O15C2H4O2 and a molecular weight of 1153.38 g/mol.
Based on its molecular formula C52H88N10O15C2H4O2, Caspofungin EP Impurity G Acetate 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 1153.38 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).
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.
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 | C52H88N10O15 C2H4O2 |
| Molecular Weight | 1153.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
Related Caspofungin Standards
- Caspofungin Impurity 24 (CAS 1131958-73-0)
- Caspofungin Impurity Triflate Salt (CAS 1201042-11-6)
- Caspofungin EP Impurity A (CAS 1202167-57-4)
- Caspofungin EP Impurity A Acetate (CAS 1202167-57-4(Free Base))
- Caspofungin Pneumocandin B0 Impurity (CAS 135575-42-7)
- Caspofungin Impurity A02-2 (CAS 1404083-47-1)
- Caspofungin Impurity A02-2 Acetate (CAS 1404083-47-1(Free Base))
- Caspofungin Pneumocandin C0 (CAS 144074-96-4)
Recommended Standards
- Methoxamine Impurity 8 (CAS CATO-C4X-20228)
- Trospium Impurity 5 (CAS CATO-C4X-20385)
- Flunarizine Impurity 24 (CAS 163596-56-3)
- Cilastatin Impurity 47 (CAS 877758-94-6)
- N-Methyl-2-((5-phenyl-1-(o-tolyl)-1H-imidazol-2-yl)thio)acetamide (CAS 1207044-96-9)
- 4-Ethyl-3-((2-methylbenzyl)thio)-5-(thiophen-2-yl)-4H-1,2,4-triazole (CAS 618411-77-1)
- 2-((Azetidin-3-ylmethyl)thio)-1-methyl-1H-imidazole (CAS 1706435-92-8)
- 2,4,5-TRIFLUOROTOLUENE (CAS 887267-34-7)
- Diphenhydramine Impurity 20 (CAS 65757-61-1)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com