Ganciclovir EP Impurity H CAS 84222-50-4
| CAS No. | 84222-50-4 |
| Molecular Formula | C9H13N5O4 |
| Molecular Weight | 255.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ganciclovir EP Impurity H (CAS 84222-50-4) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13N5O4 and a molecular weight of 255.23 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ganciclovir EP Impurity H is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), Ganciclovir EP Impurity H meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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 | >80% |
| 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 E (CAS 86357-09-7)
- 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
- Benserazide EP Impurity C (CAS 787504-88-5)
- Vonoprazan Impurity 198 (CAS 887577-48-2)
- Benserazide impurity 34 (CAS CATO-C4X-142734)
- Aciclovir Impurity Q (CAS CATO-C4X-101038)
- Ambroxol Impurity 44 (CAS 882772-99-8)
- Brexpiprazole Impurity 45 (CAS CATO-C4X-113145)
- Enrofloxacin Impurity 10 (CAS CATO-C4X-162810)
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