Valganciclovir EP Impurity Q CAS CATO-C4X-177420
| CAS No. | CATO-C4X-177420 |
| Molecular Formula | C19H31N7O6 |
| Molecular Weight | 453.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Valganciclovir EP Impurity Q (CAS CATO-C4X-177420, C19H31N7O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C19H31N7O6, Valganciclovir EP Impurity Q contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 453.49 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.
Physical & Chemical Properties
| Molecular Formula | C19H31N7O6 |
| Molecular Weight | 453.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Valganciclovir Standards
- Valganciclovir N-Valyl Impurity (CAS 897937-73-4)
- Valganciclovir EP Impurity P (CAS CATO-C4X-177428)
- Valganciclovir EP Impurity P Isomer (CAS CATO-C4X-177429)
- Valganciclovir EP Impurity Q Isomer (CAS CATO-C4X-177430)
- Valganciclovir N-benzyloxycarbonyl Impurity (CAS 194154-40-0)
- Valganciclovir Hydrochloride Bis Impurity (CAS CATO-C4X-177417)
- Valganciclovir Impurity 32 (CAS 960582-59-6)
- Valganciclovir Impurity 6 (CAS 1356932-88-1)
Recommended Standards
- Dicyclopropafenedine (CAS 2943075-87-2)
- Belumosudil Impurity N1 (CAS 911417-26-0)
- Cephalosporin Impurity 11 (Cefovecin) (CAS 234096-34-5)
- Cefcapene (CAS 135889-00-8)
- Des-G impurity (CAS CATO-CPTD789029)
- Isavuconazole Impurity 5 Chloride DiHCl (Mixture of Diastereomers) (CAS CATO-C4X-12365)
- Indobufen Impurity 62 (CAS CATO-C4X-179262)
- 2,5-Dipropoxybenzene-1,4-dicarbaldehyde (CAS 245116-57-8)
- 4-(Difluoromethyl)-5-nitropyridin-2-ol (CAS 1805328-49-7)
- 3-Hydroxycyclopent-2-en-1-one (CAS 5870-62-2)
- 4-Chloro-3,5-dimethylbenzenethiol (CAS 150729-72-9)
- 4-(2-(2,4-Dichloro-5H-pyrrolo[2,3-d]pyrimidin-7(6H)-yl)ethyl)morpholine (CAS 1351980-16-9)
- 1-((2,6-Difluorophenyl)sulfonyl)-4-(((furan-2-ylmethyl)thio)methyl)piperidine (CAS 1421584-45-3)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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