Ganciclovir EP Impurity E CAS 86357-09-7
| CAS No. | 86357-09-7 |
| Molecular Formula | C9H13N5O4 |
| Molecular Weight | 255.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ganciclovir EP Impurity E (CAS 86357-09-7) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13N5O4 and a molecular weight of 255.23 g/mol.
Based on its molecular formula C9H13N5O4, Ganciclovir EP Impurity E contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 255.23 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).
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 | C9H13N5O4 |
| Molecular Weight | 255.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 5 |
Related Ganciclovir Standards
- Ganciclovir EP Impurity H (CAS 84222-50-4)
- Ganciclovir (CAS 82410-32-0)
- Ganciclovir EP Impurity A (CAS 1797982-93-4)
- Ganciclovir impurity 21 (CAS CATO-C4X-102121)
- Ganciclovir-d5 (CAS 1189966-73-1)
- Ganciclovir Impurity 36 (CAS 86357-10-0)
- Ganciclovir EP Impurity C (CAS 108436-36-8)
- Ganciclovir EP Impurity D (CAS CATO-C4X-10214)
Recommended Standards
- Vonoprazan Impurity 198 (CAS 887577-48-2)
- Aciclovir Impurity Q (CAS CATO-C4X-101038)
- Benserazide EP Impurity C (CAS 787504-88-5)
- Aciclovir Impurity 29 (CAS CATO-C4X-101029)
- Esomeprazole Impurity 122 (CAS CATO-C4X-1112122)
- Voglibose Impurity 16 (CAS 1303996-66-8)
- Rimegepant Impurity 29 (CAS CATO-C4X-248729)
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