Epirubicin EP Impurity G (Epirubicin Dimer) CAS 1046827-43-3
| CAS No. | 1046827-43-3 |
| Molecular Formula | C54H58N2O22 |
| Molecular Weight | 1087.04 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Epirubicin EP Impurity G (Epirubicin Dimer) (CAS 1046827-43-3) is a certified pharmaceutical impurity reference standard with the molecular formula C54H58N2O22 and a molecular weight of 1087.04 g/mol.
Epirubicin EP Impurity G (Epirubicin Dimer) (C54H58N2O22) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C54H58N2O22 |
| Molecular Weight | 1087.04 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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
Related Epirubicin Standards
- Epirubicin Impurity 11 (CAS CATO-C4X-111611)
- 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)
Recommended Standards
- N-((2S,5S,8S,11S,14S,17S,20S)-1,24-Diamino-17-(4-aminobutyl)-2-benzyl-11-(3-guanidinopropyl)-14-(hydroxymethyl)-5-isobutyl-8-methyl-1,4,7,10,13,16,19-heptaoxo-3,6,9,12,15,18-hexaazatetracosan-20-yl)palmitamide (CAS 371131-16-7)
- Doxorubicin Impurity 22 (CAS CATO-C4X-203322)
- (d(CH2)51,D-Ile2,Ile4,Arg8,Ala-NH29)-Vasopressin (CAS 114455-29-7)
- Bis(11-bromoundecyl) 4,4'-(((1,2-diphenylethene-1,2-diyl)bis(4,1-phenylene))bis(ethyne-2,1-diyl))(Z)-dibenzoate (CAS 1642109-29-2)
- Celecoxib Impurity 19 (CAS 577-16-2)
- Progesterone Impurity 85 (CAS 151122-70-2)
- Avanafil Impurity 102 DiHCl (CAS 73706-74-8)
- Pantoprazole Impurity 70 (CAS CATO-C4X-139970)
- 5-Bromo-N-cyclopentylfuran-2-carboxamide (CAS 545366-68-5)
- 1-[Bis(4-fluorophenyl)methyl]-4-(4-nitrophenyl)piperazine (CAS 851472-82-7)
- Glu4,Asp5-Oxytocin (CAS CATO-C4X-20666)
- 1-(2-Fluoro-4-iodophenyl)-2,5-dimethyl-1H-pyrrole (CAS 217314-30-2)
- n-(3-Chloro-4-fluorobenzyl)butan-1-amine (CAS 1250604-27-3)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com