Epirubicin Impurity 11 CAS CATO-C4X-111611
| CAS No. | CATO-C4X-111611 |
| Molecular Formula | C31H27F6NO12 |
| Molecular Weight | 719.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Epirubicin Impurity 11 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Epirubicin Impurity 11 (CAS CATO-C4X-111611) is a certified pharmaceutical impurity reference standard with the molecular formula C31H27F6NO12 and a molecular weight of 719.54 g/mol.
The molecular framework of Epirubicin Impurity 11 (C31H27F6NO12) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C31H27F6NO12 |
| Molecular Weight | 719.54 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Epirubicin Standards
- Epirubicin Impurity 12 (CAS CATO-C4X-111612)
- Epirubicin Impurity 5 (CAS 26388-52-3)
- Epirubicin Impurity 7 (CAS 57918-22-6)
- Epirubicin Impurity 10 (CAS CATO-C4X-111610)
- Epirubicin Impurity 15 (CAS 99570-29-3)
- Epirubicin (CAS 56420-45-2)
- Epirubicin EP Impurity C (CAS CATO-C4X-11163)
- Epirubicin EP Impurity A (CAS 24385-10-2)
Recommended Standards
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- Brigatinib Impurity 1 (CAS CATO-C4X-26451)
- Itraconazole 2-Oxo Metabolite (CAS 112560-33-5)
- Dyclonine Impurity 13 (CAS 42528-76-7)
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- Ceftizoxime Impurity 80 (CAS 2922677-22-1)
- 5-(3,5-Dibromo-4-methylphenyl)oxazole (CAS 2364584-81-4)
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- 3-((6-(Isopropyl(phenyl)amino)-5-nitropyrimidin-4-yl)amino)propanoic acid (CAS 866009-65-6)
- 1-Bromo-2,4-difluoro-5-propoxybenzene (CAS 1881290-38-5)
- 3-Cyano-2,2-dimethylbutyrophenone (CAS 898765-13-4)
- 4-Methylhexanoic Acid (CAS 1561-11-1)
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